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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
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