Solution to EIGRP Task 4:part (C)?

Hi Everyone , 

In this case , you have to use concept of LEAK MAP . But in first you have to perform the following configuration on R3 and R4 -

1. On R3 - You have to summarize all of the routes of R1 and R2 on /16 with the following commands -
2.  With summarization You have to use of concept of LEAK-MAP in which we have to leak the loopbacks of R1 and R2 given in task. The  configuration is following - 

 interface FastEthernet0/0

ip summary-address eigrp 123 1.1.0.0 255.255.0.0 leak-map cisco
 ip summary-address eigrp 123 2.1.0.0 255.255.0.0 leak-map cisco1

Standard IP access list 10
    10 permit 1.1.1.0, wildcard bits 0.0.0.255

Standard IP access list 20
    10 permit 2.1.1.0, wildcard bits 0.0.0.255

route-map cisco1 permit 10
 match ip address 20
route-map cisco permit 10
 match ip address 10
 

CONFIGURATION ON R4 -

We have to perform only a little bit configuration on R4 to perform this task , which is that we have to summarize all of the routes of R1 and R2 on /21 . 

interface FastEthernet0/0

ip summary-address eigrp 123 1.1.0.0 255.255.248.0
 ip summary-address eigrp 123 2.1.0.0 255.255.248.0
 

This is the configuration you have to configure to perform this task . 

Have a nice day .

In this case you have to apply the logic of leack-map feature of eigrp on R4 for the two networks of R1's Loopback 1.1.1.1 and R2's

loopback 2.1.1.1 so after that it will take the path via R3 for that two loopbacks.

I hope you understand.