Mysterious ospf LSA Type-4

Every one who are at this position of preparing for CCIE lab must know about all ospf LSA Types. However LSA Type-4 always remains mysterious and confusing for many of us. So let's discuss on this LSA Type.

Consider a small ospf domain for better understanding of this LSA.

-----RIP Domain -----R1----AREA0------R2------AREA1--------R3

Here R1 is an ASBR since it is redistributing RIP into OSPF, R2 is an ABR because both area 0 is attached to it. R3 is an internal router in area 1.

To need to understand LSA Type-5 we have to understand how a router perform lookup in order to reach to an external prefix.

When R1 performs redistribution from rip into ospf, R1generates an LSA Type-5 which contains external prefixes with it's attributes. In this LSA, R1 attachs in this LSA, its router-I'd in the advertising router field and forwarding address ( this may be 0.0.0.0 or any ip address depends on some parameters of the external link).
Now when a router in the same area in which ASBR is present like R2 performs few steps of recursive look up
First look is for external prefix I.e
Show ip ospf database external <> output of this command will contain the advertising router ip address and forward address along with other details.
If forwarder address field is a non zero value then further look up will perform on this address otherwise look up will perform on the advertising router field ip address which is R1's router I'd.

R2 will then search for this address in its ospf database
show ip ospf database router <R1's router-id>
since this router is in the same area so it will perform SPF calculation in order to reach R1 and ultimately to external prefix.

When an ABR i.e R2 pass on the LSA Type-5 to area 1 (LSA Tpye-5 are supposed to get flooded through out the ospf domain) it also generates an LSA Type-4 for area 1 in order to inform all the routers in area 1 that the external prefixes are advertised by the router address (ASBR) contained in the LSA Type-4. Since R2 the ABR forwarding this information to the internal routers in area 1 so they can contact R2 in order to reach to ASBR and ultimately the external prefixes.

Any internal router performs the first look up on external prefix

show ip ospf database external <> (assuming forwarder address field is 0.0.0.0) then look up will perform on advertising router ( R1's router-id ) appeared in this output.
Show ip ospf database router <R1's router-id >
this will not give any output because this router does not belong to this area 1. Therefore internal router will now have to perform look up on asbr
Show ip ospf database asbr-summary <>
this contains the advertising router as R2's router-id the ABR so further look ups will perform on this ABR in order to reach it.
Show ip ospf database router <ABR's router-id>
now internal router will do SPF calculation to reach to ABR in order to reach ABBR and ultimately to external prefixes. 

CCIE # 37340

Hi guys

I am happy to announce that after couple of years of work hard and applying good strategy in the lab exam I got my CCIE number. All the strategy for lab I had already been discussed on my blog. I had also been discussing on corner case scenarios on various networking technologies in my blog from time to time which I though could be useful for others.
I covered the entire INE volume workbooks several times, few Cisco 360 labs at the end of my preparation for practice. I also studied from various networking books available in the market such as tcp/ip routing vol1 &2, tcp/ip protocols vol1 by Richard Stevens and many more.

I shall keep posting on this blog on technical topics which are sometimes difficult to understand or confusing.

Practice Lab and Real Lab Approach Strategy

I have completed many full scale as of now and came out with a strategy for attempting a CCIE R&S labs. From now on I will try to approach a practice or real lab with these steps. The time is 6 hours for completing the entire lab.

1. Read the instructions very carefully. ---- 2 min

2. Draw your own L3 logical Diagram. Rough diagram only.  ---- 5 min

3. Read the entire lab (Mark the important points in the diagram) ---- 15 min
   3.1. Layer 2 section will help to draw L2 Diagram. ---- 5 min

4. Identify the core and none core tasks in the entire lab. --- 2 min

5. Prepare a table like this to track your time, tasks and points. ---- 1min

   TIME           HOURS           TASKS           POINTS           ROUND1            TASKS?(unsolved)
9:00-9:30         30 min        2.1,2.2,2.3,2.4      2+0+3+2            Tick                      2.2

5. Start configuring ONLY the core topics first, make sure full IP connectivity is there.This also includes IPv6 tasks. If you do not know how to configure the core task do some alternative e.g. you are required to form an OSPF adjacency on IP unnumbered interfaces for some reason it not happening, in that case give some ip address to the interfaces so that you have OSPF adjacency for full IP connectivity. Though you may lose points for this task but will help getting points in the following tasks. ---- 3 hours

6. Verify each and every core tasks once it is configured

7. If this is a practice lab; once you configure a task verify it from the solution guide. If solution guide has a different approach then try to remember both the approaches. ---- 2 hour

8. Pick out the easiest tasks in the lab and configure them. Easy task are task which you can configure them without the help of configuration guide or even command line. ---- 1 hour

9. Verify each task once it is configured.

10. Pick out the task which you think you can configure with the help of configuration guide. ---- 1/2 hour

11. Verify these tasks as well.

12. There may be few tasks still left over, just DO NOT try to configure them. Leave them as of now.

13. Verify the entire lab task from starting to end. ---- 1 hour

14. If time is still left then try the configure the left over tasks. Make sure you are not breaking the previous verified task or connectivity.

Excluding step 7, all the steps need to be followed for real lab. So total time is 6 hours to finish the lab. If step 7 is also included for practice labs the total time is 8 hours to complete the lab.

Static NAT

There can be various NAT scenarios which can create issues in the exam. Lets take a static NAT case which appear very simple at first but it requires some thought in order to solve it.

R6(f0/0.146)----(f0/1)R4(s0/0/1)----(s0/0/1)R5(s0/0/0)----503FRSW305----(s1/0)R3(f0/0)-----(f0/3)SW1

R5 is the NAT device and ospf is running between all devices. Loopbacks of R6 and SW1 are not advertise in ospf. Now the task is configure this scenario so that R6 can ping SW1's loopback sourced from its loopback. Use minimum number of static routes to solve this.

Note : Try to solve it without looking at the solution.

Here is the solution..

Portfast and BPDUfilter Combined

Cisco has some proprietary STP features for faster convergence at layer 2. Today lets discuss portfast and bpdufilter.

Portfast essentially does two main things when applied on the access ports of the switch. 

1. It skips listening and learning phases of stp and directly jumps to forwarding state whenever a host is alive on the respective connected port.

2. It does not generate TCN (Topology Change Notification) bit to inform root about the change in network topology. Generally when portfast is not applied and a host comes up on a switchport, stp generate a TCN bit to inform root switch about the change and then the root switch flush the CAM table of the entire layer 2 network which increases the convergence time. Therefore by using portfast it reduces the convergence time by insuring the host ports can not create loops.

There are two ways by which we can apply portfast on switch ports.

1. Directly on access switchports

#switchport access vlan X

#spanning-tree  portfast

2. Globally 

#spanning-tree portfast default

first will apply only on the respective port on which its applied and second will apply on all the access ports of the switch.

BPDUfilter isolates the switching domain by not receiving and sending (though it sends 11 initial bpdu to prevent transient loops) bpdu to the connected device. There are two ways to apply bpdufilter.

1. On interface

#spanning-tree bpdufilter enable

2. Globally

#spanning-tree portfast bpdufilter default

First applies only on interface while second applies on all the access ports on which portfast is enabled. In this case if bpdu is received on the portfast enabled access port, the portfast status on this port is disabled that means bpdufilter which applied globally does not have any significance. 

Lets try some applying combinations of these two features.

1. Both portfast and bpdufilter on interface

In this case bpdufilter take the precedence, that means this interface will not send and receive any bpdu. Here receive means it silently drops the bpdus on this interface. Therefore portfast will not be able to revert to disable state and port remains portfast enabled.

2. Portfast globally and bpdufilter on interface

This is same as case 1 except that since portfast is applied globally it will apply to all the access ports of the switch.

3. Both portfast and bpdufilter globally

In this case portfast will apply to all access ports of the switch and bpdufilter apply on all the portfast enabled ports. That means bpdu will not send out on these ports and if bpdus are received then porstfast is disabled on this port.  Now since portfast is diabled on this port bpdufilter will no long apply on this port.

4. Portfast on interface and bpdufilter globally

 In this case, when we apply bpdufilter globally it will apply only on portfast enabled ports. The port on which portfast is applied will not send any bpdu but if it receives any bpdu it will disable the porstfast from this port and therefore bpdufilter is also no longer applied on this interface.

Also note that we can also disable portfast or bpdufilter on per interface basis.

On interface

#spanning-tree portfast disable OR # spanning-tree bpdufilter diable

The above mentioned cases can be used in various scenarios at layer 2 switching to solve stp convergence issues.

For example

Task : Ensure only f0/1 and f0/2 should skip listening and learning phases and bpdus should not be send and receive on these ports, if any bpdu is received it should disables the portfast on these ports.

Solution : 

Globally "spanning-tree portfast bpdufilter default

Interface f0/1 and f0/2 "spanning-tree portfast"

here ONLY is the keyword lookout for. Which means apply portfast at interface level and on these interface apply bpdufilter by applying bpdufilter globally.

In this way we can have other tasks require our learning on these features though these features are being replaced by mstp and rstp. In these advance spanning tree technologies these features are inbuilt. 

Here is the end of this blog, we will take up other stp features in the future blogs.

Thanks

Multicast TroubleShooting

Configuration of Multicast is not that difficult unlike its troubleshooting. The multicast TS is a process of verifying the configuration at each step using proper tools. Lets take a multicast TS ticket which involves an advance multicast scenario with multiple issues which may not necessarily only from multicast.

You just need to copy and paste the initial configuration on all the devices of any INE Rack and start working on the TS ticket.

Note: You just need to take care of rack number. Here I have used Rack 1 .

Note: TRY NOT TO USE "Show run" commands for better learning purposes 

Topology Diagram:

Ticket: R6 can not able to ping the multicast group 224.2.2.2 which is listening on R2's Loopback0. Fix it.


--------------------------INITIAL CONFIGURATIONS---------------------------------


R1:

enable
config t




Current configuration : 942 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!
!      
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 shutdown
!
interface Serial0/0/1
 no ip address
 shutdown
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!      
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line aux 0
line vty 0 4
 login
!
scheduler allocate 20000 1000
end

---------------------------------------------------------------------------------------------

R2:

enable
config t



Current configuration : 1567 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!
!      
ip multicast-routing
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 150.1.2.2 255.255.255.0
 ip pim sparse-mode
 ip igmp join-group 224.2.2.2
 no ip mroute-cache
!
interface FastEthernet0/0
 ip address 155.1.28.2 255.255.255.0
 ip pim sparse-mode
 no ip mroute-cache
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 shutdown
!
interface Serial0/0/1
 no ip address
 shutdown
!
router eigrp 10
 network 150.1.2.2 0.0.0.0
 network 155.1.28.2 0.0.0.0
 no auto-summary
 eigrp router-id 150.1.2.2
!
router bgp 200
 no synchronization
 bgp log-neighbor-changes
 network 150.1.2.0 mask 255.255.255.0
 neighbor 150.1.8.8 remote-as 200
 no auto-summary
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip pim send-rp-announce Loopback0 scope 2 interval 10
ip msdp peer 150.1.3.3 connect-source Loopback1 remote-as 101
ip msdp password peer 150.1.3.3 CISC0
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line aux 0
line vty 0 4
 login
!
scheduler allocate 20000 1000
end

---------------------------------------------------------------------------------------------

R3:

enable
config t


Current configuration : 1918 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!
!      
ip multicast-routing
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 150.1.3.3 255.255.255.0
 ip pim sparse-mode
 shut
!
interface FastEthernet0/0
 ip address 155.1.37.3 255.255.255.0
 ip pim sparse-mode
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 155.1.39.3 255.255.255.0
 ip pim sparse-mode
 ip access-group MULTICAST in
 duplex auto
 speed auto
!
interface Serial1/0
 no ip address
 shutdown
!
interface Serial1/1
 no ip address
 shutdown
!      
interface Serial1/2
 no ip address
 shutdown
!
interface Serial1/3
 no ip address
 shutdown
!
router ospf 1
 router-id 150.1.3.3
 log-adjacency-changes
 network 150.1.3.3 0.0.0.0 area 1
 network 155.1.37.3 0.0.0.0 area 1
 network 155.1.39.3 0.0.0.0 area 1
!
router bgp 100
 no synchronization
 bgp log-neighbor-changes
 network 150.1.3.0 mask 255.255.255.0
 neighbor IBGP_PEERS peer-group
 neighbor IBGP_PEERS remote-as 100
 neighbor IBGP_PEERS update-source Loopback0
 neighbor IBGP_PEERS route-reflector-client
 neighbor 150.1.7.7 peer-group IBGP_PEERS
 neighbor 150.1.9.9 peer-group IBGP_PEERS
 no auto-summary
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip pim rp-candidate Loopback0 interval 10
ip msdp peer 150.1.2.2 connect-source Loopback0
ip msdp password peer 150.1.2.2 CISCO
!
access-list 120 permit ip 155.1.56.0 0.0.0.255 225.0.0.0 30.255.255.255
!
!
ip access-list extended MULTICAST
 deny   pim any any
 permit ip any any
!
!
!
!
control-plane
!
!      
!
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line aux 0
line vty 0 4
 login
!
scheduler allocate 20000 1000
end

---------------------------------------------------------------------------------------------

R4:

enable
config t




Current configuration : 962 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R4
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!
!      
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 shutdown
!
interface Serial0/0/1
 no ip address
 shutdown
 clock rate 2000000
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!      
!
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line aux 0
line vty 0 4
 login
!
scheduler allocate 20000 1000
end

---------------------------------------------------------------------------------------------

R5:

enable
config t


Current configuration : 1346 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R5
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!
!      
ip multicast-routing
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 150.1.5.5 255.255.255.0
 ip pim sparse-mode
!
interface FastEthernet0/0
 ip address 155.1.56.5 255.255.255.0
 ip pim sparse-mode
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 155.1.59.5 255.255.255.0
 ip pim sparse-mode
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 shutdown
!
interface Serial0/0/1
 no ip address
 shutdown
!      
router ospf 1
 router-id 150.1.5.5
 log-adjacency-changes
 area 2 nssa default-information-originate
 network 150.1.5.5 0.0.0.0 area 0
 network 155.1.56.5 0.0.0.0 area 2
 network 155.1.59.5 0.0.0.0 area 0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip pim bsr-candidate Loopback0 0
!
!
!
!
!
!
!
control-plane
!      
!
!
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line aux 0
line vty 0 4
 login
!
scheduler allocate 20000 1000
end

---------------------------------------------------------------------------------------------

R6:

enable
config t



Current configuration : 1147 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R6
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!
!      
ip multicast-routing
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 150.1.6.6 255.255.255.0
!
interface FastEthernet0/0
 ip address 155.1.56.6 255.255.255.0
 ip pim sparse-mode
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 shutdown
!
router ospf 1
 router-id 150.1.6.6
 log-adjacency-changes
 area 1 nssa
 network 150.1.6.6 0.0.0.0 area 2
 network 155.1.56.6 0.0.0.0 area 1
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!      
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line aux 0
line vty 0 4
 login
!
scheduler allocate 20000 1000
end

---------------------------------------------------------------------------------------------

SW1:

enable
config t



Current configuration : 4742 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname SW1
!
boot-start-marker
boot-end-marker
!
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
ip routing
!
!      
ip multicast-routing distributed
!
!
crypto pki trustpoint TP-self-signed-3817290112
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3817290112
 revocation-check none
 rsakeypair TP-self-signed-3817290112
!
!
crypto pki certificate chain TP-self-signed-3817290112
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383137 32393031 3132301E 170D3933 30333031 30303031
  32355A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313732
  39303131 3230819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100BB1A 34F6E38D F58112CD 9746C936 56896227 89935549 C3EB868B 7DA4FA9A
  D0FB19AD 6A3B56CA 082ED34C 2535742C 0B553966 5B3F62E4 6690AE4E ACF20A55
  3006A862 5054DA8C 69E91CB3 3BBF2E1D CDC0B840 A0D95D49 D9B30BB6 2649739A
  D4B6F4E9 3B8901F4 6AB02F0E 99DA0F8E 5F66A89C E85164E2 BD84FB08 F8A7702E
  025B0203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535731 2E301F06 03551D23 04183016 80144E36 D63150BB
  D68858CA 720B4CDC 392B8564 5D4F301D 0603551D 0E041604 144E36D6 3150BBD6
  8858CA72 0B4CDC39 2B85645D 4F300D06 092A8648 86F70D01 01040500 03818100
  3ED41F07 B919C329 58A5E77A B2E7F84C 479E10DA 20D41836 895A083D C3A299EE
  FC134E4E D53F35B3 E31CECAD CF775040 A8586B76 736C58FC 7EB9EEB8 BF6E8998
  A11BA823 DBC19B14 D4C9E070 AA030C83 0C9EFB4B 848C8F16 B2A0DB75 26E07011
  AAFCF349 D8CE11C7 6C740FA7 B072ED71 3C058778 B353D9EF 538AE575 BFE15FF6
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.7.7 255.255.255.0
!      
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
 no switchport
 ip address 155.1.37.7 255.255.255.0
 ip pim sparse-mode
!
interface FastEthernet0/4
!
interface FastEthernet0/5
 switchport access vlan 56
 switchport mode access
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!      
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/15
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/16
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/17
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/18
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/19
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/20
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!      
interface FastEthernet0/21
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan78
 ip address 155.1.78.7 255.255.255.0
 ip pim bsr-border
!
router ospf 1
 router-id 150.1.7.7
 log-adjacency-changes
 network 150.1.7.7 0.0.0.0 area 1
 network 155.1.37.7 0.0.0.0 area 1
!
router bgp 100
 no synchronization
 bgp log-neighbor-changes
 neighbor 150.1.3.3 remote-as 100
 neighbor 150.1.3.3 next-hop-self
 neighbor 155.1.78.8 remote-as 200
 no auto-summary
!
ip classless
ip http server
ip http secure-server
!
!
!      
ip prefix-list R6_PREFIX seq 5 permit 155.1.56.0/24
ip prefix-list R6_PREFIX seq 10 permit 150.1.6.0/24 ge 32
ip sla enable reaction-alerts
!
route-map R6_PREFIX->BGP permit 10
 match ip address prefix-list R6_PREFIX
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line vty 0 4
 login
line vty 5 15
 login
!
end

---------------------------------------------------------------------------------------------

SW2:

enable
config t



Current configuration : 4672 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname SW2
!
boot-start-marker
boot-end-marker
!
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
ip routing
!
!      
ip multicast-routing distributed
!
!
crypto pki trustpoint TP-self-signed-3819482240
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3819482240
 revocation-check none
 rsakeypair TP-self-signed-3819482240
!
!
crypto pki certificate chain TP-self-signed-3819482240
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383139 34383232 3430301E 170D3933 30333031 30303031
  32305A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313934
  38323234 3030819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100BA8A 91B9F34F 61EF5C72 0A769170 C145F085 B9A4301B 5F5CA957 80BA7085
  7D18D125 8985C8DE BDEEF751 3CB3D694 EBDF7F6F 79EC952E D4636C37 2FC460C0
  55A6C402 46507722 9D5D8E0E 7B8676A6 29E264F2 D997B654 C8D62F05 95ADCFBE
  B48722F3 240BFF79 36D840CB 831851A2 05A94C24 84044E64 21C3B002 3060C2E0
  E79D0203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535732 2E301F06 03551D23 04183016 801491E5 622F7489
  F097DA15 89997FA9 46705116 8E08301D 0603551D 0E041604 1491E562 2F7489F0
  97DA1589 997FA946 7051168E 08300D06 092A8648 86F70D01 01040500 03818100
  4347DB03 09EC1E15 AB1B079E 870EDC8D 15D982C0 CA00E679 3C051E1E B0CA9D4F
  52C98D65 29954E0B C145D907 D370946C A8748B05 A6F816D4 C9EC2961 115F003A
  07251756 F72D444B 9DF962AC 2E93C8D0 070870EB 17CAE0AA E0023412 5C8787F8
  85E06849 24E7FA5B 2D46535C 031AD148 57A40C87 4BC401F2 8257D98E A3A7F904
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.8.8 255.255.255.0
 ip pim sparse-mode
!
interface FastEthernet0/1
!
interface FastEthernet0/2
 no switchport
 ip address 155.1.28.8 255.255.255.0
 ip pim sparse-mode
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
 switchport access vlan 56
 switchport mode access
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/15
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/16
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/17
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/18
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/19
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/20
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/21
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan78
 ip address 155.1.78.8 255.255.255.0
 ip pim sparse-mode
 ip multicast boundary FILTER_AUTO_RP
!
!
router eigrp 10
 network 150.1.8.8 0.0.0.0
 network 155.1.28.8 0.0.0.0
 eigrp router-id 150.1.8.8
!
router bgp 200
 no synchronization
 bgp log-neighbor-changes
 neighbor 150.1.2.2 remote-as 200
 neighbor 150.1.2.2 update-source Loopback0
 neighbor 150.1.2.2 next-hop-self
 neighbor 155.1.78.7 remote-as 100
 no auto-summary
!
ip classless
ip http server
ip http secure-server
!
!
access-list 2 permit 150.1.2.2
access-list 22 deny   224.0.0.0
access-list 22 permit any
!
ip pim send-rp-discovery Loopback0 scope 1 interval 10
ip pim rp-announce-filter rp-list 2 group-list 22
!      
ip access-list standard FILTER_AUTO_RP
 deny   224.0.1.39
 deny   224.0.1.40
 permit any
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line vty 0 4
 login
line vty 5 15
 login
!
end

---------------------------------------------------------------------------------------------

SW3:

enable
config t


Current configuration : 4547 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname SW3
!
boot-start-marker
boot-end-marker
!
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
ip routing
!
!      
!
!
crypto pki trustpoint TP-self-signed-3817305984
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3817305984
 revocation-check none
 rsakeypair TP-self-signed-3817305984
!
!
crypto pki certificate chain TP-self-signed-3817305984
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383137 33303539 3834301E 170D3933 30333031 30303031
  32305A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313733
  30353938 3430819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100E9D9 7ABD3879 0A129780 9F334565 356A9FF4 EB7FE4E1 34ACDAE2 B4F64E4D
  1001A812 964DB2EC 0F3F774F 98D9D043 6F68F370 26FB3FD4 B2C25E37 5E1FB5C1
  5B7DF79A 22FCD48A 1248FD23 07DDB4EC 916FD70D FFD59E03 09F0B545 5736A864
  56674F5B 67F7FB60 CE98BBDB 3137C54C 5EDA5B3E C9457CC8 3C316909 2166027C
  E64F0203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535733 2E301F06 03551D23 04183016 8014A185 28641084
  A83336D4 F35DB110 90343537 8FC2301D 0603551D 0E041604 14A18528 641084A8
  3336D4F3 5DB11090 3435378F C2300D06 092A8648 86F70D01 01040500 03818100
  93EB266A 7147D6E0 10B4777B 490685E8 07A6761E 2D312478 0F546501 BB218280
  E67897F8 10B68BF4 FE6D5F2B AEA2565F 39380FF3 E2C0E351 AFCE0794 8F837E30
  0013685F 6A08D572 4363A817 85B2EBF0 2C5ADFA1 8966D9F6 8E27C721 A5E76140
  DA72BE7A 3F405FFA 16C5B456 4CA0E0F8 4F7D45CB BB8F205E D6CA4577 6054FB6A
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.9.9 255.255.255.0
 ip pim sparse-mode
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
 switchport access vlan 39
 switchport mode access
!
interface FastEthernet0/4
!
interface FastEthernet0/5
 switchport access vlan 59
 switchport mode access
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!      
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/15
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/16
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/17
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/18
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/19
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/20
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!      
interface FastEthernet0/21
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan39
 ip address 155.1.39.9 255.255.255.0
 ip pim sparse-mode
!      
interface Vlan59
 ip address 155.1.59.9 255.255.255.0
 ip pim sparse-mode
!
router ospf 1
 router-id 150.1.9.9
 log-adjacency-changes
 network 150.1.9.9 0.0.0.0 area 0
 network 155.1.39.9 0.0.0.0 area 1
 network 155.1.59.9 0.0.0.0 area 0
!
router bgp 100
 no synchronization
 bgp log-neighbor-changes
 neighbor 150.1.3.3 remote-as 100
 no auto-summary
!
ip classless
ip http server
ip http secure-server
!
ip pim rp-candidate Loopback0 interval 10 priority 100
!      
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line vty 0 4
 login
line vty 5 15
 login
!
end

---------------------------------------------------------------------------------------------

SW4:

enable
config t



Current configuration : 3838 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname SW4
!
boot-start-marker
boot-end-marker
!
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
!
!
!      
!
crypto pki trustpoint TP-self-signed-3817290240
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3817290240
 revocation-check none
 rsakeypair TP-self-signed-3817290240
!
!
crypto pki certificate chain TP-self-signed-3817290240
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383137 32393032 3430301E 170D3933 30333031 30303031
  31395A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313732
  39303234 3030819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100C7F8 FD003D7F 48BF2D79 D2E2F3AF 97BF626A 2482A978 D6E7C205 F9C354A9
  2593DBE7 5C88F699 6DDF93D1 48D951A1 8491A61A B76B8155 C6E15C7B 20304EF8
  39DAA4ED 518F5B1C 4DA8D48B E5E92163 01EFA14A 934BECDF F5929DF4 341C6BD5
  6CC94434 C6B1F2E7 CE01FF1A 6EB9861E FC20B52F FEA94C23 0BAB1BCD A0936845
  AF930203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535734 2E301F06 03551D23 04183016 80149123 050BF20B
  50FE9784 F4AE992E 61D66F3D 3DB8301D 0603551D 0E041604 14912305 0BF20B50
  FE9784F4 AE992E61 D66F3D3D B8300D06 092A8648 86F70D01 01040500 03818100
  405838B4 838FD607 9BFFB10B B8E8EFC1 13F2555A F0914056 E33565C5 FE3928CC
  C1A846A7 A93899F5 A6D5BB09 BD4A4756 0FDCBB73 2CDCD171 2B6520CD 6665BD32
  769A6895 102656AE 1515A7B7 ADBABED2 22A4AD16 C193B70D 20814864 DCBD06D6
  29CF765D 0B28932D F73F5513 0A2BC8EC 88D37371 10DA44FC 94A0356D 39C5CB6A
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/15
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/16
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/17
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/18
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/19
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/20
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/21
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
ip classless
ip http server
ip http secure-server
!
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
 speed 38400
line vty 0 4
 login
line vty 5 15
 login
!
end

---------------------------------------------------------------------------------------------

NTP TroubleShooting

NTP provide time synchronization in the network devices. NTP TS its just like verifying each configuration steps except with minor exceptions. Lets take those exceptions along with common causes in NTP TS.  I deliberately introduce multiple issues in this topology. These issues may not necessarily be from NTP.

You just need to copy and paste the initial configuration on all the devices of any INE Rack and start working on the TS ticket.

Note: You just need to take care of rack number. Here I have used Rack 1 .
Note: TRY NOT TO USE "Show run" commands for better learning purposes

Topology Diagram:

Ticket1: NTP clients are not synchronized with NTP server. Fix it.

-----------------------INITIAL CONFIGURATIONS-------------------------------

R1:

Enable
Config t



Current configuration : 1285 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R1
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!      
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!      
interface Loopback0
 ip address 150.1.1.1 255.255.255.0
!
interface FastEthernet0/0
 ip address 155.1.146.1 255.255.255.0
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 encapsulation frame-relay
!
interface Serial0/0/0.1 point-to-point
 ip address 155.1.0.1 255.255.255.0
 frame-relay interface-dlci 105
!      
interface Serial0/0/1
 ip address 155.1.13.1 255.255.255.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!      
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
end

-----------------------------------------------------------------------------------------



R2:

Enable
Config t




Current configuration : 1274 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R2
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!      
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!      
interface Loopback0
 ip address 150.1.2.2 255.255.255.0
!
interface FastEthernet0/0
 ip address 192.10.1.2 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 encapsulation frame-relay
!
interface Serial0/0/0.1 point-to-point
 ip address 155.1.0.2 255.255.255.0
 frame-relay interface-dlci 205
!
interface Serial0/0/1
 ip address 155.1.23.2 255.255.255.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!      
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
end

----------------------------------------------------------------------------------------


R3:

Enable
Config t




Current configuration : 1878 bytes
!
! Last configuration change at 20:44:30 UTC Wed Apr 18 2012
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R3
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!      
ip cef
!
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!      
!
!
interface Loopback0
 ip address 150.1.3.3 255.255.255.0
!
interface FastEthernet0/0
 ip address 155.1.37.3 255.255.255.0
 ip access-group EIGRP in
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 155.1.43.3 255.255.255.0
 ip access-group NTP in
 duplex auto
 speed auto
!
interface Serial1/0
 no ip address
 encapsulation frame-relay
!
interface Serial1/0.1 point-to-point
 ip address 155.1.0.3 255.255.255.0
 frame-relay interface-dlci 305
!
interface Serial1/1
 no ip address
 shutdown
!
interface Serial1/2
 ip address 155.1.13.3 255.255.255.0
 clock rate 64000
!
interface Serial1/3
 ip address 155.1.23.3 255.255.255.0
 clock rate 64000
!
router eigrp 10
 network 150.1.0.0
 network 155.1.0.0
 no auto-summary
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!      
!
!
ip access-list extended EIGRP
 permit ip any any
ip access-list extended NTP
 deny   udp any eq ntp any
 deny   udp any any eq ntp
 permit ip any any
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!      
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
ntp authentication-key 43 md5 096F673A3A2A 7
ntp authenticate
ntp trusted-key 43
ntp server 150.1.4.4 source Loopback0
end

-----------------------------------------------------------------------------------------


R4:

Enable
Config t




Current configuration : 1759 bytes
!
! Last configuration change at 20:42:18 UTC Wed Apr 18 2012
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R4
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!      
ip cef
!
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
key chain EIGRP
 key 1
   key-string CISCO
!
!
!
!
!
!
!      
!
!
!
!
!
!
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!      
!
!
!
!
!
!
interface Loopback0
 ip address 150.1.4.4 255.255.255.0
 shutdown
!
interface FastEthernet0/0
 ip address 155.1.43.4 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 155.1.146.4 255.255.255.0
 ip authentication mode eigrp 10 md5
 ip authentication key-chain eigrp 10 EIGRP
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 encapsulation frame-relay
!
interface Serial0/0/0.1 point-to-point
 ip address 155.1.0.4 255.255.255.0
 frame-relay interface-dlci 405
!
interface Serial0/0/1
 ip address 155.1.45.4 255.255.255.0
 clock rate 64000
!
router eigrp 10
 network 150.1.0.0
 network 155.1.0.0
 no auto-summary
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!      
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
ntp authentication-key 43 md5 00273A352774 7
ntp authentication-key 46 md5 047822352C0E 7
ntp trusted-key 64
ntp trusted-key 43
ntp source Loopback0
ntp master 7
ntp server 150.1.4.4
end

-----------------------------------------------------------------------------------------


R5:

Enable
Config t





Current configuration : 1398 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R5
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!      
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!      
interface Loopback0
 ip address 150.1.5.5 255.255.255.0
!
interface FastEthernet0/0
 ip address 155.1.58.5 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 155.1.5.5 255.255.255.0
 duplex auto
 speed auto
!
interface Serial0/0/0
 ip address 155.1.0.5 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 155.1.0.4 504 broadcast
 frame-relay map ip 155.1.0.3 503 broadcast
 frame-relay map ip 155.1.0.2 502 broadcast
 frame-relay map ip 155.1.0.1 501 broadcast
 no frame-relay inverse-arp
!
interface Serial0/0/1
 ip address 155.1.45.5 255.255.255.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!      
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
end

-----------------------------------------------------------------------------------------


R6:

Enable
Config t





Current configuration : 1692 bytes
!
! Last configuration change at 20:45:14 UTC Wed Apr 18 2012
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R6
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!      
ip cef
!
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
key chain EIGRP
 key 1
   key-string CISCO
!
!
!
!
!
!
!      
!
!
!
!
!
!
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!      
!
!
!
!
!
!
interface Loopback0
 ip address 150.1.6.6 255.255.255.0
!
interface FastEthernet0/0
 no ip address
 duplex auto
 speed auto
!
interface FastEthernet0/0.67
 encapsulation dot1Q 67
 ip address 155.1.67.6 255.255.255.0
!
interface FastEthernet0/0.146
 encapsulation dot1Q 146
 ip address 155.1.146.6 255.255.255.0
 ip authentication mode eigrp 10 md5
 ip authentication key-chain eigrp 10 EIGRP
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 ip address 54.1.1.6 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 54.1.1.254 101 broadcast
!
router eigrp 10
 network 150.1.0.0
 network 155.1.0.0
 no auto-summary
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!      
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
ntp authentication-key 46 md5 062526136F61 7
ntp authenticate
ntp server 150.1.4.4 source Loopback0
end

---------------------------------------------------------------------------------------


SW1:

Enable
Config t




Current configuration : 4010 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1SW1
!
boot-start-marker
boot-end-marker
!
enable password cisco
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
ip routing
no ip domain-lookup
!
!
!
!
crypto pki trustpoint TP-self-signed-3817290112
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3817290112
 revocation-check none
 rsakeypair TP-self-signed-3817290112
!
!
crypto pki certificate chain TP-self-signed-3817290112
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383137 32393031 3132301E 170D3933 30333031 30303131
  30325A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313732
  39303131 3230819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100EB14 D8B1EDD2 7907520B 10C018D4 39F0AD6D A231AED9 BED9AEC6 21A79CDC
  7D4DC350 94F3AAA1 FD77B225 13996685 B8946D64 2E7B3189 2BD0F2E0 F9447FDA
  599B426C DEF0AC03 4CC22373 D2C0CFE8 A9D14CFF 0067B2F1 5AACD311 1BC493BC
  988BD25F 7C38F0DD 618E2B94 F6E984B6 E2266F69 4AF3DFDB B0A9B719 331A612B
  90E30203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535731 2E301F06 03551D23 04183016 8014DA7A D70513B1
  129D9908 816E0E58 FA147A8F A3BD301D 0603551D 0E041604 14DA7AD7 0513B112
  9D990881 6E0E58FA 147A8FA3 BD300D06 092A8648 86F70D01 01040500 03818100
  9A0A702B AB8CAC50 D7C3F588 6E4FD437 A28C3809 A55F99F4 D289059C 000097FA
  ED0E328F D3F79F77 85B2C6BD B078E7BC B55D17F4 AB8DF5BA 810C8DAC 4CBBE939
  70C9FB6E EAEFD9CB 3BC77A03 805E7037 7ECC12C3 F5DE5101 6D776B23 4B963D65
  67BBDED5 BAF9A4E2 DFDDE663 31841423 1C753ECB BEAED509 25149EEC 0681E588
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.7.7 255.255.255.0
!
interface FastEthernet0/1
 switchport access vlan 146
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/2
!
interface FastEthernet0/3
 no switchport
 ip address 155.1.37.7 255.255.255.0
!
interface FastEthernet0/4
!
interface FastEthernet0/5
 switchport access vlan 58
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!      
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport mode dynamic desirable
!
interface FastEthernet0/14
 switchport mode dynamic desirable
!
interface FastEthernet0/15
 switchport mode dynamic desirable
!
interface FastEthernet0/16
 switchport mode dynamic desirable
!
interface FastEthernet0/17
 switchport mode dynamic desirable
!
interface FastEthernet0/18
 switchport mode dynamic desirable
!
interface FastEthernet0/19
 switchport mode dynamic desirable
!
interface FastEthernet0/20
 switchport mode dynamic desirable
!
interface FastEthernet0/21
 switchport mode dynamic desirable
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan7
 ip address 155.1.7.7 255.255.255.0
!
interface Vlan67
 ip address 155.1.67.7 255.255.255.0
!
interface Vlan79
 ip address 155.1.79.7 255.255.255.0
!
!
router eigrp 10
 network 155.1.0.0
 network 150.1.0.0
 no auto
!
!
!
ip classless
ip http server
ip http secure-server
!
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line vty 0 4
 password cisco
 login
line vty 5 15
 password cisco
 login
!
end
       

-----------------------------------------------------------------------------------------


SW2:

Enable
Config t




Current configuration : 4060 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1SW2
!
boot-start-marker
boot-end-marker
!
enable password cisco
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
no ip domain-lookup
!      
!
!
!
crypto pki trustpoint TP-self-signed-3819482240
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3819482240
 revocation-check none
 rsakeypair TP-self-signed-3819482240
!
!
crypto pki certificate chain TP-self-signed-3819482240
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383139 34383232 3430301E 170D3933 30333031 30303131
  30315A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313934
  38323234 3030819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100A837 82D6C881 800C4388 3530AB13 BA5BF24E 287B930D 23E87550 2AB8E6CE
  D2A64706 F0D4D7F8 F0D6A957 99618333 41B3151E 0D4A3762 D23C6B90 255500D5
  BCEDFFCE E5BD2B0C 18824191 41DC2C91 65C0B10B C80DA935 6B640AB4 3AFCB936
  CB3EF1E6 6D89E7EE 16248E2E 66E19965 D299D3D7 C399BA9F A451A94B 15C8D1CC
  428F0203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535732 2E301F06 03551D23 04183016 8014D981 2DC83174
  778DE36B ED56E7EA 12238458 C0AB301D 0603551D 0E041604 14D9812D C8317477
  8DE36BED 56E7EA12 238458C0 AB300D06 092A8648 86F70D01 01040500 03818100
  1D070628 97289B70 5232CF0F 90385491 EF2D1BE2 0727752A 26372174 9BFF2D8E
  48393ABB D1CFFFD3 3A3DD0F4 4129CC11 9889BD50 E34102AD 73D3350B 8AAED219
  CD2BA90C 27F10D8A A886305D D4FAE4D9 CFB58DFF A48F8A69 27794E02 CF2144EA
  EFCED9F0 6CFDFE4C 9CAE7CF0 97459580 093DC01C 35AB8559 4D0B04E0 40644CB3
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
ip access-list extended EIGRP
 permit eigrp any any
!
!
vlan access-map VLAN_MAP 10
 action drop
 match ip address EIGRP
vlan access-map VLAN_MAP 20
 action forward
!
vlan filter VLAN_MAP vlan-list 43
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.8.8 255.255.255.0
!      
interface Port-channel1
 no switchport
 ip address 155.1.108.8 255.255.255.0
!
interface FastEthernet0/1
!
interface FastEthernet0/2
 switchport access vlan 22
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/3
!
interface FastEthernet0/4
 switchport access vlan 43
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/5
!
interface FastEthernet0/6
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport mode dynamic desirable
!
interface FastEthernet0/14
 switchport mode dynamic desirable
!
interface FastEthernet0/15
 switchport mode dynamic desirable
!
interface FastEthernet0/16
 switchport mode dynamic desirable
!
interface FastEthernet0/17
 switchport mode dynamic desirable
!
interface FastEthernet0/18
 switchport mode dynamic desirable
!
interface FastEthernet0/19
 no switchport
 no ip address
 channel-group 1 mode on
!
interface FastEthernet0/20
 no switchport
 no ip address
 channel-group 1 mode on
!
interface FastEthernet0/21
 switchport mode dynamic desirable
!
interface FastEthernet0/22
!      
interface FastEthernet0/23
!
interface FastEthernet0/24
 switchport access vlan 22
 switchport mode access
 spanning-tree portfast
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan8
 ip address 155.1.8.8 255.255.255.0
!
interface Vlan58
 ip address 155.1.58.8 255.255.255.0
!
ip classless
ip http server
ip http secure-server
!
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line vty 0 4
 password cisco
 login
line vty 5 15
 password cisco
 login
!
end

---------------------------------------------------------------------------------------



SW3:

Enable
Config t



Current configuration : 3831 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1SW3
!
boot-start-marker
boot-end-marker
!
enable password cisco
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
no ip domain-lookup
!      
!
!
!
crypto pki trustpoint TP-self-signed-3817305984
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3817305984
 revocation-check none
 rsakeypair TP-self-signed-3817305984
!
!
crypto pki certificate chain TP-self-signed-3817305984
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383137 33303539 3834301E 170D3933 30333031 30303131
  30315A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313733
  30353938 3430819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100C769 FF6EFF61 B1A90633 742490B5 451DB6A8 FD3ECCEB D50F2A27 06A6ED45
  FE139569 A086D8B8 41C65CE6 94E798C7 A8DF051A 517916F6 FB95380A E47BFE44
  DDDB9A60 8ACEB1F7 CDA47FB2 6939B9D8 A6E3BF7C B824AC58 1519707F 018A6806
  9C246CFF 3C6A817F 2FFF8376 D496A0F6 606E7E0C F161678C A92800A1 DE884A97
  545F0203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535733 2E301F06 03551D23 04183016 8014727E F9FC8A5B
  863BBB1E BC2C115F 813F4BFC 9EA9301D 0603551D 0E041604 14727EF9 FC8A5B86
  3BBB1EBC 2C115F81 3F4BFC9E A9300D06 092A8648 86F70D01 01040500 03818100
  7AB609CE 03584B9A 85D00FCF 6CA6F59F E4984898 35D53691 6433BF57 A37C3ED1
  4866CBC1 E99C3746 799393CC 95EEE40A DD9F6A51 3F061CCF 3CB59A53 897AF112
  4F135059 01DA2695 3EC6DCAB 4C850371 72404BD0 3C15F2C5 926617EB 047E9D92
  65948CC2 DC676466 1194CB15 364D3665 088ABB44 0E5929DB 2F408387 1A704054
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.9.9 255.255.255.0
!      
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
 switchport access vlan 43
!
interface FastEthernet0/4
!
interface FastEthernet0/5
 switchport access vlan 5
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport mode dynamic desirable
!
interface FastEthernet0/14
 switchport mode dynamic desirable
!
interface FastEthernet0/15
 switchport mode dynamic desirable
!
interface FastEthernet0/16
 switchport mode dynamic desirable
!
interface FastEthernet0/17
 switchport mode dynamic desirable
!
interface FastEthernet0/18
 switchport mode dynamic desirable
!      
interface FastEthernet0/19
 switchport mode dynamic desirable
!
interface FastEthernet0/20
 switchport mode dynamic desirable
!
interface FastEthernet0/21
 switchport mode dynamic desirable
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
 switchport access vlan 43
 switchport mode access
 spanning-tree portfast
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan9
 ip address 155.1.9.9 255.255.255.0
!
interface Vlan79
 ip address 155.1.79.9 255.255.255.0
!
ip classless
ip http server
ip http secure-server
!
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line vty 0 4
 password cisco
 login
line vty 5 15
 password cisco
 login
!
end

---------------------------------------------------------------------------------------



SW4:

Enable
Config t




Current configuration : 3800 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1SW4
!
boot-start-marker
boot-end-marker
!
enable password cisco
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
no ip domain-lookup
!      
!
!
!
crypto pki trustpoint TP-self-signed-3817290240
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3817290240
 revocation-check none
 rsakeypair TP-self-signed-3817290240
!
!
crypto pki certificate chain TP-self-signed-3817290240
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383137 32393032 3430301E 170D3933 30333031 30303131
  30325A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313732
  39303234 3030819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100A882 8FE6CF9A B3F50221 B8E72FCF 63CCCD43 C1A9413D 0FB9A949 7039AF7A
  C388A46C BAD51B80 8FF8E1D9 93117A25 7B3050AE B45DD0F1 BCF4A248 E8E67E26
  C32763D1 EEF76A8C CE39F76C 974AA287 D0822950 BB6ECD51 963A028D 9BD7B103
  E40BCA82 6CDA6BBF 11A9F479 53A4E74C 81B718D7 D02291BF F48444FB F3AE2205
  C8BD0203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535734 2E301F06 03551D23 04183016 80141447 F24FD588
  D20BE6F5 CD962442 8F6EB9DA 9579301D 0603551D 0E041604 141447F2 4FD588D2
  0BE6F5CD 9624428F 6EB9DA95 79300D06 092A8648 86F70D01 01040500 03818100
  1CC19729 F5D312B9 DA3B6C4B 5AC0BD06 6317043C 05CF0A2B CDA4F23E 2D0E8A24
  2FB4DBF1 9551F6B2 469A7904 3FC08A0A 997DC725 5B00BDA8 5BA37247 B45E7086
  5CE14049 C1FC95BB F3D2CDC4 F68F8271 F71CED12 B3B0CFB1 658584DC F731F6B8
  7410BA9C E3819D52 4B36A44F B45094CF 669F6B6B 10C6FD9B 173FB472 E424132D
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.10.10 255.255.255.0
!      
interface Port-channel1
 no switchport
 ip address 155.1.108.10 255.255.255.0
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
 switchport access vlan 146
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!      
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport mode dynamic desirable
!
interface FastEthernet0/14
 switchport mode dynamic desirable
!
interface FastEthernet0/15
 switchport mode dynamic desirable
!
interface FastEthernet0/16
 no switchport
 no ip address
 channel-group 1 mode on
!
interface FastEthernet0/17
 no switchport
 no ip address
 channel-group 1 mode on
!
interface FastEthernet0/18
 switchport mode dynamic desirable
!
interface FastEthernet0/19
 switchport mode dynamic desirable
!
interface FastEthernet0/20
 switchport mode dynamic desirable
!
interface FastEthernet0/21
 switchport mode dynamic desirable
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan10
 ip address 155.1.10.10 255.255.255.0
!
ip classless
ip http server
ip http secure-server
!
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line vty 0 4
 password cisco
 login
line vty 5 15
 password cisco
 login
!
end


---------------------------------------------------------------------------------------

EIGRP TroubleShooting

EIGRP TS ticket may sometimes create unexpected problems. Lets take an EIGRP Troubleshooting ticket. I deliberately introduce multiple issues in this topology. These issues may not necessarily be from EIGRP.

You just need to copy and paste the initial configuration on concern devices of any INE Rack and start working on the TS ticket.

Note: You just need to take care of rack number. Here I have used Rack 1 .

Note: TRY NOT TO USE "Show run" commands for better learning purposes 

Topology Diagram:

Ticket1:  Loopback0 interfaces of SW1 and R4 are unable to reach each other. Fix it

--------------------------INITIAL CONFIGURATIONS------------------------

R1:


Enable
Config t


Current configuration : 1285 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R1
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!      
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!      
interface Loopback0
 ip address 150.1.1.1 255.255.255.0
!
interface FastEthernet0/0
 ip address 155.1.146.1 255.255.255.0
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 encapsulation frame-relay
!
interface Serial0/0/0.1 point-to-point
 ip address 155.1.0.1 255.255.255.0
 frame-relay interface-dlci 105
!      
interface Serial0/0/1
 ip address 155.1.13.1 255.255.255.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!      
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
end

-----------------------------------------------------------------------------------------------

R2: 

Enable
Config t




Current configuration : 1274 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R2
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!      
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!      
interface Loopback0
 ip address 150.1.2.2 255.255.255.0
!
interface FastEthernet0/0
 ip address 192.10.1.2 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 encapsulation frame-relay
!
interface Serial0/0/0.1 point-to-point
 ip address 155.1.0.2 255.255.255.0
 frame-relay interface-dlci 205
!
interface Serial0/0/1
 ip address 155.1.23.2 255.255.255.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!      
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
end


-----------------------------------------------------------------------------------------------

R3: 

Enable
Config t




Current configuration : 1591 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R3
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!      
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!      
interface Loopback0
 ip address 150.1.3.3 255.255.255.0
!
interface FastEthernet0/0
 ip address 155.1.37.3 255.255.255.0
 ip access-group EIGRP in
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 155.1.43.3 255.255.255.0
 duplex auto
 speed auto
!
interface Serial1/0
 no ip address
 encapsulation frame-relay
!
interface Serial1/0.1 point-to-point
 ip address 155.1.0.3 255.255.255.0
 frame-relay interface-dlci 305
!
interface Serial1/1
 no ip address
 shutdown
!
interface Serial1/2
 ip address 155.1.13.3 255.255.255.0
 clock rate 64000
!
interface Serial1/3
 ip address 155.1.23.3 255.255.255.0
 clock rate 64000
!
router eigrp 10
 network 150.1.0.0
 network 155.1.0.0
 auto-summary
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
ip access-list extended EIGRP
 deny   eigrp any any
 permit ip any any
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
end

-----------------------------------------------------------------------------------------------

R4:

Enable
Config t




Current configuration : 1375 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R4
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!      
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!      
interface Loopback0
 ip address 150.1.4.4 255.255.255.0
!
interface FastEthernet0/0
 ip address 155.1.43.4 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 155.1.146.4 255.255.255.0
 duplex auto
 speed auto
!
interface Serial0/0/0
 no ip address
 encapsulation frame-relay
!
interface Serial0/0/0.1 point-to-point
 ip address 155.1.0.4 255.255.255.0
 frame-relay interface-dlci 405
!
interface Serial0/0/1
 ip address 155.1.45.4 255.255.255.0
 clock rate 64000
!
router eigrp 10
 network 150.1.0.0
 network 155.1.0.0
 auto-summary
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!
!
!      
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
end


-----------------------------------------------------------------------------------------------

R5: 

Enable
Config t





Current configuration : 1398 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R5
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!      
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!      
interface Loopback0
 ip address 150.1.5.5 255.255.255.0
!
interface FastEthernet0/0
 ip address 155.1.58.5 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 155.1.5.5 255.255.255.0
 duplex auto
 speed auto
!
interface Serial0/0/0
 ip address 155.1.0.5 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 155.1.0.4 504 broadcast
 frame-relay map ip 155.1.0.3 503 broadcast
 frame-relay map ip 155.1.0.2 502 broadcast
 frame-relay map ip 155.1.0.1 501 broadcast
 no frame-relay inverse-arp
!
interface Serial0/0/1
 ip address 155.1.45.5 255.255.255.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!      
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
end

-----------------------------------------------------------------------------------------------

R6: 

Enable
Config t





Current configuration : 1401 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1R6
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
enable password cisco
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
ip cef
!      
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!      
!
!
!
!
!
voice-card 0
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
!
!
!
!      
interface Loopback0
 ip address 150.1.6.6 255.255.255.0
!
interface FastEthernet0/0
 no ip address
 duplex auto
 speed auto
!
interface FastEthernet0/0.67
 encapsulation dot1Q 67
 ip address 155.1.67.6 255.255.255.0
!
interface FastEthernet0/0.146
 encapsulation dot1Q 146
 ip address 155.1.146.6 255.255.255.0
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 ip address 54.1.1.6 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 54.1.1.254 101 broadcast
!
router eigrp 10
 network 150.1.0.0
 network 155.1.0.0
 auto-summary
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!      
!
!
!
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line aux 0
 exec-timeout 0 0
 privilege level 15
line vty 0 4
 password cisco
 login
!
scheduler allocate 20000 1000
end

-----------------------------------------------------------------------------------------------

SW1: 

Enable
Config t



Current configuration : 4010 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1SW1
!
boot-start-marker
boot-end-marker
!
enable password cisco
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
ip routing
no ip domain-lookup
!
!
!
!
crypto pki trustpoint TP-self-signed-3817290112
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3817290112
 revocation-check none
 rsakeypair TP-self-signed-3817290112
!
!
crypto pki certificate chain TP-self-signed-3817290112
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383137 32393031 3132301E 170D3933 30333031 30303131
  30325A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313732
  39303131 3230819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100EB14 D8B1EDD2 7907520B 10C018D4 39F0AD6D A231AED9 BED9AEC6 21A79CDC
  7D4DC350 94F3AAA1 FD77B225 13996685 B8946D64 2E7B3189 2BD0F2E0 F9447FDA
  599B426C DEF0AC03 4CC22373 D2C0CFE8 A9D14CFF 0067B2F1 5AACD311 1BC493BC
  988BD25F 7C38F0DD 618E2B94 F6E984B6 E2266F69 4AF3DFDB B0A9B719 331A612B
  90E30203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535731 2E301F06 03551D23 04183016 8014DA7A D70513B1
  129D9908 816E0E58 FA147A8F A3BD301D 0603551D 0E041604 14DA7AD7 0513B112
  9D990881 6E0E58FA 147A8FA3 BD300D06 092A8648 86F70D01 01040500 03818100
  9A0A702B AB8CAC50 D7C3F588 6E4FD437 A28C3809 A55F99F4 D289059C 000097FA
  ED0E328F D3F79F77 85B2C6BD B078E7BC B55D17F4 AB8DF5BA 810C8DAC 4CBBE939
  70C9FB6E EAEFD9CB 3BC77A03 805E7037 7ECC12C3 F5DE5101 6D776B23 4B963D65
  67BBDED5 BAF9A4E2 DFDDE663 31841423 1C753ECB BEAED509 25149EEC 0681E588
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.7.7 255.255.255.0
!
interface FastEthernet0/1
 switchport access vlan 146
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/2
!
interface FastEthernet0/3
 no switchport
 ip address 155.1.37.7 255.255.255.0
!
interface FastEthernet0/4
!
interface FastEthernet0/5
 switchport access vlan 58
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!      
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport mode dynamic desirable
!
interface FastEthernet0/14
 switchport mode dynamic desirable
!
interface FastEthernet0/15
 switchport mode dynamic desirable
!
interface FastEthernet0/16
 switchport mode dynamic desirable
!
interface FastEthernet0/17
 switchport mode dynamic desirable
!
interface FastEthernet0/18
 switchport mode dynamic desirable
!
interface FastEthernet0/19
 switchport mode dynamic desirable
!
interface FastEthernet0/20
 switchport mode dynamic desirable
!
interface FastEthernet0/21
 switchport mode dynamic desirable
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan7
 ip address 155.1.7.7 255.255.255.0
!
interface Vlan67
 ip address 155.1.67.7 255.255.255.0
!
interface Vlan79
 ip address 155.1.79.7 255.255.255.0
!
!
router eigrp 10
 network 155.1.0.0
!
!
router eigrp 1
 network 150.1.7.7 0.0.0.0
!
ip classless
ip http server
ip http secure-server
!
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line vty 0 4
 password cisco
 login
line vty 5 15
 password cisco
 login
!
end
       

-----------------------------------------------------------------------------------------------

SW2: 

Enable
Config t




Current configuration : 4060 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1SW2
!
boot-start-marker
boot-end-marker
!
enable password cisco
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
no ip domain-lookup
!      
!
!
!
crypto pki trustpoint TP-self-signed-3819482240
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3819482240
 revocation-check none
 rsakeypair TP-self-signed-3819482240
!
!
crypto pki certificate chain TP-self-signed-3819482240
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383139 34383232 3430301E 170D3933 30333031 30303131
  30315A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313934
  38323234 3030819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100A837 82D6C881 800C4388 3530AB13 BA5BF24E 287B930D 23E87550 2AB8E6CE
  D2A64706 F0D4D7F8 F0D6A957 99618333 41B3151E 0D4A3762 D23C6B90 255500D5
  BCEDFFCE E5BD2B0C 18824191 41DC2C91 65C0B10B C80DA935 6B640AB4 3AFCB936
  CB3EF1E6 6D89E7EE 16248E2E 66E19965 D299D3D7 C399BA9F A451A94B 15C8D1CC
  428F0203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535732 2E301F06 03551D23 04183016 8014D981 2DC83174
  778DE36B ED56E7EA 12238458 C0AB301D 0603551D 0E041604 14D9812D C8317477
  8DE36BED 56E7EA12 238458C0 AB300D06 092A8648 86F70D01 01040500 03818100
  1D070628 97289B70 5232CF0F 90385491 EF2D1BE2 0727752A 26372174 9BFF2D8E
  48393ABB D1CFFFD3 3A3DD0F4 4129CC11 9889BD50 E34102AD 73D3350B 8AAED219
  CD2BA90C 27F10D8A A886305D D4FAE4D9 CFB58DFF A48F8A69 27794E02 CF2144EA
  EFCED9F0 6CFDFE4C 9CAE7CF0 97459580 093DC01C 35AB8559 4D0B04E0 40644CB3
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.8.8 255.255.255.0
!      
interface Port-channel1
 no switchport
 ip address 155.1.108.8 255.255.255.0
!
interface FastEthernet0/1
!
interface FastEthernet0/2
 switchport access vlan 22
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/3
!
interface FastEthernet0/4
 switchport access vlan 43
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/5
!
interface FastEthernet0/6
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport mode dynamic desirable
!
interface FastEthernet0/14
 switchport mode dynamic desirable
!
interface FastEthernet0/15
 switchport mode dynamic desirable
!
interface FastEthernet0/16
 switchport mode dynamic desirable
!
interface FastEthernet0/17
 switchport mode dynamic desirable
!
interface FastEthernet0/18
 switchport mode dynamic desirable
!
interface FastEthernet0/19
 no switchport
 no ip address
 channel-group 1 mode on
!
interface FastEthernet0/20
 no switchport
 no ip address
 channel-group 1 mode on
!
interface FastEthernet0/21
 switchport mode dynamic desirable
!
interface FastEthernet0/22
!      
interface FastEthernet0/23
!
interface FastEthernet0/24
 switchport access vlan 22
 switchport mode access
 spanning-tree portfast
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan8
 ip address 155.1.8.8 255.255.255.0
!
interface Vlan58
 ip address 155.1.58.8 255.255.255.0
!
ip classless
ip http server
ip http secure-server
!
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line vty 0 4
 password cisco
 login
line vty 5 15
 password cisco
 login
!
end

-----------------------------------------------------------------------------------------------

SW3: 

Enable
Config t






Current configuration : 3831 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1SW3
!
boot-start-marker
boot-end-marker
!
enable password cisco
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
no ip domain-lookup
!      
!
!
!
crypto pki trustpoint TP-self-signed-3817305984
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3817305984
 revocation-check none
 rsakeypair TP-self-signed-3817305984
!
!
crypto pki certificate chain TP-self-signed-3817305984
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383137 33303539 3834301E 170D3933 30333031 30303131
  30315A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313733
  30353938 3430819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100C769 FF6EFF61 B1A90633 742490B5 451DB6A8 FD3ECCEB D50F2A27 06A6ED45
  FE139569 A086D8B8 41C65CE6 94E798C7 A8DF051A 517916F6 FB95380A E47BFE44
  DDDB9A60 8ACEB1F7 CDA47FB2 6939B9D8 A6E3BF7C B824AC58 1519707F 018A6806
  9C246CFF 3C6A817F 2FFF8376 D496A0F6 606E7E0C F161678C A92800A1 DE884A97
  545F0203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535733 2E301F06 03551D23 04183016 8014727E F9FC8A5B
  863BBB1E BC2C115F 813F4BFC 9EA9301D 0603551D 0E041604 14727EF9 FC8A5B86
  3BBB1EBC 2C115F81 3F4BFC9E A9300D06 092A8648 86F70D01 01040500 03818100
  7AB609CE 03584B9A 85D00FCF 6CA6F59F E4984898 35D53691 6433BF57 A37C3ED1
  4866CBC1 E99C3746 799393CC 95EEE40A DD9F6A51 3F061CCF 3CB59A53 897AF112
  4F135059 01DA2695 3EC6DCAB 4C850371 72404BD0 3C15F2C5 926617EB 047E9D92
  65948CC2 DC676466 1194CB15 364D3665 088ABB44 0E5929DB 2F408387 1A704054
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.9.9 255.255.255.0
!      
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
 switchport access vlan 43
!
interface FastEthernet0/4
!
interface FastEthernet0/5
 switchport access vlan 5
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport mode dynamic desirable
!
interface FastEthernet0/14
 switchport mode dynamic desirable
!
interface FastEthernet0/15
 switchport mode dynamic desirable
!
interface FastEthernet0/16
 switchport mode dynamic desirable
!
interface FastEthernet0/17
 switchport mode dynamic desirable
!
interface FastEthernet0/18
 switchport mode dynamic desirable
!      
interface FastEthernet0/19
 switchport mode dynamic desirable
!
interface FastEthernet0/20
 switchport mode dynamic desirable
!
interface FastEthernet0/21
 switchport mode dynamic desirable
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
 switchport access vlan 43
 switchport mode access
 spanning-tree portfast
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan9
 ip address 155.1.9.9 255.255.255.0
!
interface Vlan79
 ip address 155.1.79.9 255.255.255.0
!
ip classless
ip http server
ip http secure-server
!
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line vty 0 4
 password cisco
 login
line vty 5 15
 password cisco
 login
!
end
-----------------------------------------------------------------------------------------------

SW4: 

Enable
Config t




Current configuration : 3800 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Rack1SW4
!
boot-start-marker
boot-end-marker
!
enable password cisco
!
!
!
no aaa new-model
system mtu routing 1500
authentication mac-move permit
ip subnet-zero
no ip domain-lookup
!      
!
!
!
crypto pki trustpoint TP-self-signed-3817290240
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3817290240
 revocation-check none
 rsakeypair TP-self-signed-3817290240
!
!
crypto pki certificate chain TP-self-signed-3817290240
 certificate self-signed 01
  3082023C 308201A5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33383137 32393032 3430301E 170D3933 30333031 30303131
  30325A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313732
  39303234 3030819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100A882 8FE6CF9A B3F50221 B8E72FCF 63CCCD43 C1A9413D 0FB9A949 7039AF7A
  C388A46C BAD51B80 8FF8E1D9 93117A25 7B3050AE B45DD0F1 BCF4A248 E8E67E26
  C32763D1 EEF76A8C CE39F76C 974AA287 D0822950 BB6ECD51 963A028D 9BD7B103
  E40BCA82 6CDA6BBF 11A9F479 53A4E74C 81B718D7 D02291BF F48444FB F3AE2205
  C8BD0203 010001A3 64306230 0F060355 1D130101 FF040530 030101FF 300F0603
  551D1104 08300682 04535734 2E301F06 03551D23 04183016 80141447 F24FD588
  D20BE6F5 CD962442 8F6EB9DA 9579301D 0603551D 0E041604 141447F2 4FD588D2
  0BE6F5CD 9624428F 6EB9DA95 79300D06 092A8648 86F70D01 01040500 03818100
  1CC19729 F5D312B9 DA3B6C4B 5AC0BD06 6317043C 05CF0A2B CDA4F23E 2D0E8A24
  2FB4DBF1 9551F6B2 469A7904 3FC08A0A 997DC725 5B00BDA8 5BA37247 B45E7086
  5CE14049 C1FC95BB F3D2CDC4 F68F8271 F71CED12 B3B0CFB1 658584DC F731F6B8
  7410BA9C E3819D52 4B36A44F B45094CF 669F6B6B 10C6FD9B 173FB472 E424132D
  quit
!
!
!
spanning-tree mode pvst
spanning-tree etherchannel guard misconfig
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface Loopback0
 ip address 150.1.10.10 255.255.255.0
!      
interface Port-channel1
 no switchport
 ip address 155.1.108.10 255.255.255.0
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
 switchport access vlan 146
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!      
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 switchport mode dynamic desirable
!
interface FastEthernet0/14
 switchport mode dynamic desirable
!
interface FastEthernet0/15
 switchport mode dynamic desirable
!
interface FastEthernet0/16
 no switchport
 no ip address
 channel-group 1 mode on
!
interface FastEthernet0/17
 no switchport
 no ip address
 channel-group 1 mode on
!
interface FastEthernet0/18
 switchport mode dynamic desirable
!
interface FastEthernet0/19
 switchport mode dynamic desirable
!
interface FastEthernet0/20
 switchport mode dynamic desirable
!
interface FastEthernet0/21
 switchport mode dynamic desirable
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan10
 ip address 155.1.10.10 255.255.255.0
!
ip classless
ip http server
ip http secure-server
!
!
ip sla enable reaction-alerts
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 speed 38400
line vty 0 4
 password cisco
 login
line vty 5 15
 password cisco
 login
!
end
----------------------------------------------------------------------------------

I will post the solution of this ticket once i get responses from you guys. Thanks.