CCNA(640-802) Lab – EIGRP Troubleshooting

After adding P4S2 router, no routing updates are being exchanged between P4S1 and the new location. All other inter connectivity and Internet access for the existing locations of the company are working properly.

The task is to identify the fault(s) and correct the router configuration to provide full connectivity between the routers.

Access to the router CLI can be gained by clicking on the appropriate host.

All passwords on all routers are cisco.

IP addresses are listed in the chart below.

Click that host-G, complete the configration of the router in the pop-up CLI

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Explanation:
Step1:
Identify the faults in configuration on P4S1 and P4S2. As the SIM specifies all other inter connectivity and internet access for the existing locations of the company are working properly.
Routing Protocols used in the SIM is EIGRP with AS 212 as provided by exhibit.
Faults Identified:

Wrong AS (EIGRP 22) provided at P4S2 (New router)

P4S1 does not advertise the new network between P4S1 and P4S2 into EIGRP.

We need to correct the above two configuration mistakes to have full connectivity
Step2: Correcting the EIGRP AS to 212
Wrong AS (EIGRP 22) provided at P4S2 (New router)
All routers that want to exchange routes within EIGRP needs to be in same Autonomous System.
Step 2.1:
First we need to remove the current wrong EIGRP AS 22 from Router P4S2
Click on Host-F to get CLI of P4S2
P4S2>enable
Password : cisco (Provided by SIM Q )
P4S2#conf t
P4S2(conf)#
Step 2.2:
Removing the wrong EIGRP routing process with AS 22
P4S2(conf)#no router eigrp 22
The above statement removes all the EIGRP configuration configured for AS 22 .
Step 2.3:
Adding the correct EIGRP configuration
Start the EIGRP routing process with AS 212
P4S2(conf)#router eigrp 212
Step 2.4:
Advertise the directly connected networks into EIGRP on P4S2
Fa 0/0 – 192.168.77.34
Fa 1/0 – 192.168.60.81
Fa 0/1 – 192.168.60.65

P4S2(config-router)#network 192.168.60.0

P4S2(config-router)#network 192.168.77.0
P4S2(config-router)#no auto-summary
P4S2(config-router)#end
Step 2.5:
Important save the changes made to router P4S2
P4S2#copy run start
Step 3:

P4S1 does not advertise the new network between P4S1 and P4S2 into EIGRP.

Click on Host-G to get CLI of P4S1
The network 192.168.77.0 is used between P4S1 Fa0/0 – P4S2 Fa 0/0
This network needs to be advertise into EIGRP routing process at P4S1
P4S1>enable
Password : cisco (Provided by SIM Q )
P4S1#conf t
P4S1(conf)#
Step 3.1:
Enter EIGRP routing process for AS 212
P4S1(conf)#router eigrp 212
Step 3.2:
The network 192.168.77.0 is used between P4S1 Fa0/0 – P4S2 Fa 0/0 . Advertise this network into EIGRP
P4S1(config-router)#network 192.168.77.0
P4S1(config-router)#end
Step 3.3:
Important save the changes made to router P4S1
P4S1#copy run start
Verification:
From P4S2 CLI
ping P4S1 Serial 1/0 IP address 198.0.18.6
P4S2#ping 198.0.18.6
!!!!!
A successful ping shows the new P4S2 will have full connectivity with other routers.

That is all, hope to helpful for you. Best Luck for ur CCNA 640-802 Exam.

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