EIGRP Configuration Practice tasks

Topology

Task 1

Configure EIGRP on R1,R2,R3 with AS no 1 and advertise directly

connected interfaces. Make sure you can ping R3 loopback from R1

after this task?

Solution:

On R1,R2,R3,R4 configure as below

Rx(config)#router eigrp 1

Rx(config-router)#network 10.x.x.x (network IDs of interfaces)

Rx(config-router)#network x.x.x.x (loopback interface ip address)

Rx(config-router)#no auto-summary

Task 2

Configure EIGRP on R4 with AS no 1 and advertise on Fast Ethernet

1/0 and Fast Ethernet 1/1. Run EIGRP with AS 2 on R4 and

advertise its Loopback interface in the EIGRP AS2?

Solution:

On R4 configure as below

Rx(config)#router eigrp 1

Rx(config-router)#network 10.x.x.0

Rx(config-router)#no auto-summary

Configuring AS2

Rx(config)#router eigrp 2

Rx(config-router)#network (loopback interface IP address)

Rx(config-router)#no auto-summary

Task 3

Redistribute EIGRP AS2 into EIGRP AS1 , and make sure the

topology is complete now and you can ping loopback of R4 from all

other routers?

Solution

R4(config)#router eigrp 1

R4(config-router)#redistribute eigrp 2 metric 1 1 1 1 1*

*These are the K values, you learned during the lecture. This is compulsory in

EIGRP otherwise it will not be redistributed into EIGRP

Verification on R1 after redistribution

Show ip route

Task 4

Change the K values on all Routers to K1=20

K2=30

K3=50

K4=50

K5=60

Verify after changing

Solution

Configure on R1,R2,R3,R4 as below

router eigrp 1

metric weights 0 20 30 50 50 60

Task 5

Configure following null Static routes on R1 and generate a

summary address for these routes. 20.1.1.0/24

20.1.2.0/24

20.1.3.0/24

20.1.4.0/24

20.1.5.0/24

Verify on other routes that it can receive the summary address.

Solution:

R1(config)#ip route 20.1.1.0 255.255.255.0 null 0

R1(config)#ip route 20.1.1.0 255.255.255.0 null 0

R1(config)#ip route 20.1.2.0 255.255.255.0 null 0

R1(config)#ip route 20.1.3.0 255.255.255.0 null 0

R1(config)#ip route 20.1.4.0 255.255.255.0 null 0

R1(config)#ip route 20.1.5.0 255.255.255.0 null 0

Redistribute static routes on R1

R1(config-if)#router ei 1

R1(config-router)#redistribute static metric 1 1 1 1 1

Before summary address

Generate summary address

R1(config-router)#inter fas 1/0 and 1/1

R1(config-if)#ip summary-address eigrp 1 20.1.1.0 255.255.248.0

After generating summary address

Task 6

Configure R2 in such a way that no other routers receive routes

from R2 but R2 must have its routing table complete.

Solution

R2(config-router)#eigrp 1

R2(config-router)#eigrp stub receive-only

Verification

Check on R1 it should not be receiving R2 loopback interface in its routing table

Task 7

R3 should not be receiving R4 loopback ip address in its routing

table.

Solution

access-list 1 deny 4.4.4.4

access-list 1 permit any

router eigrp 1

distribute-list 1 in FastEthernet1/1

Task 8

Change Hello interval in between R3 and R4 to 2 seconds and dead

interval 6 seconds. Solution

Configure on R3 and R4

Rx(config-if)#router eigrp 1

Rx(config-if)#ip hello-interval eigrp 1 2

Task 9

Change administrative distance on R1,R2,R3,R4 Verify task after

implementation

Distance for internal routes 50

Distance for External routes 60

Solution

Task 10

Change by default maximum path on R1 from 4 to 16 and verify

after task

Solution

R1(config-router)#router eigrp 1

R1(config-router)#maximum-paths 16