EIGRP Enabler #2
Now for some more EIGRP work. Your job: read and react to a set of requirements to then choose how to configure about a dozen EIGRP network commands. Simple, useful, do it and move on to the next thing!
Initial State: Topology
Figure 1 shows the topology for this exercise, with three routers connected in a triangle, each with two LAN interfaces.
EIGRP Enabler Topology
Initial State: Interfaces and Routing Protocol
Each of the routers has an initial configuration that includes IPv4 addresses, working interfaces, and EIGRP configured to shows its autonomous system number. Examples 1, 2, and 3 show that configuration.
int g0/1 ip addr 172.16.12.1 255.255.255.252 no shut ! int g0/2 ip addr 172.16.13.1 255.255.255.248 no shut ! int g0/3 ip addr 172.21.1.1 255.255.255.0 no shut ! int g0/4 ip addr 172.21.3.1 255.255.254.0 no shut ! router eigrp 1 eigrp router-id 188.8.131.52 ! Need network Commands Here
Router R1 Initial Configuration
int g0/1 ip addr 172.16.12.2 255.255.255.252 no shut ! int g0/2 ip addr 172.16.23.2 255.255.255.248 no shut ! ! int g0/3 ip addr 172.22.2.2 255.255.255.128 no shut ! int g0/4 ip addr 172.22.2.130 255.255.255.192 no shut ! router eigrp 1 eigrp router-id 184.108.40.206 ! Need network Commands Here
Router R2 Initial Configuration
! int g0/1 ip addr 172.16.13.3 255.255.255.248 no shut ! int g0/2 ip addr 172.16.23.3 255.255.255.248 no shut ! int g0/3 ip addr 172.23.33.3 255.255.255.224 no shut ! int g0/4 ip addr 172.23.33.213 255.255.255.240 no shut ! router eigrp 1 eigrp router-id 220.127.116.11 ! Need network Commands Here
Router R3 Initial Configuration
Your Job: Complete the Configuration with network Commands
To finish the configuration, you need to enable EIGRP on all the interfaces shown in the figure. To do that, for this lab, add EIGRP network commands to each router’s configuration.
By the end of this exercise, a real network with the combined initial config, plus your config, should result in:
- EIGRP neighbor relationships between each pair of routers, so that each router has two EIGRP neighbors.
- Each router has learned routes to all subnets in the figure.
Configure Your Commands Per These Specific Rules
Use the following requirements when configuring your EIGRP network commands.
R1 – Match the Subnet: On router R1, make each network command match all addresses in a single subnet. Use wildcard masks as needed, and use as many network commands as needed to enable EIGRP on all interfaces shown in the figure.
R2 – Match the Subnet: Same rules as on router R1.
R3 – Match the Interface Address: On router R3, make each network command match one specific IP address. Use wildcard masks as needed, and use as many network commands as needed to enable EIGRP on all interfaces shown in the figure.
Note that this exercise is not like what real network engineers do in their jobs. In real networks, you would probably use the same approach on each router.
I will post an answer post in a few days. So, look for the link at the bottom of this page.
Do this Exercise as a Lab with VIRL
Are you thinking that you’d like to just do this exercise with VIRL, instead of on paper, or just typing in an editor? We already built the topology and initial configuration. Just click below to get the .VIRL file.