CCNP - EIGRP Lab - Load balancing across Equal Cost Path

Interface IP Address Configuration

R1

Interface IP Address Subnet Mask
S 0 2.2.2.1 255.0.0.0
S 1 1.1.1.1 255.0.0.0
E 0 20.1.1.1 255.0.0.0

R2

Interface IP Address Subnet Mask
S 1 1 .1.1.2 255.0.0.0
S0 2.2.2.2 255.0.0.0
E 0 30.1.1.1 255.0.0.0


Lab Objective:

Task 1

Configure EIGRP AS 100 as per the above scenario and verify load balancing using the
traceroute command on R3 :

R1
Router eigrp 100
Network 20.0.0.0
Network 1.0.0.0
Network 2.0.0.0
No auto-summary

R2

Router eigrp 100
Network 1.0.0.0
Network 30.0.0.0
Network 2.0.0.0
No auto-summary

Verification:

R3#show ip route

C 1.0.0.0/8 is directly connected, Serial1
C 2.0.0.0/8 is directly connected, Serial0
D 20.0.0.0/8 [90/2195456] via 1.1.1.1, 00:07:42, Serial1
[90/2195456] via 2.2.2.1, 00:07:42, Serial0
C 30.0.0.0/8 is directly connected, Ethernet0

First Traceroute packet going via 1.1.1.1

R3#traceroute 20.1.1.1

Type escape sequence to abort.
Tracing the route to 20.1.1.1

1 1.1.1.1 32 msec
2.2.2.1 20 msec *

Second Traceroute packet going via 2.2.2.1

R3#traceroute 20.1.1.1

Type escape sequence to abort.
Tracing the route to 20.1.1.1

1 2.2.2.1 20 msec
1.1.1.1 28 msec *