RIPv2 Basics 1

By certskills May 25, 2016 09:05

RIP Version 2 (RIPv2) configuration may be one of those topics that become obvious with a little practice, but it does require a little practice at least. Interestingly, you may have to think more about which routers do not need particular commands. This lab gives you some basic requirements, and asks you to configure the details, but without configuring any extra configuration commands.


This lab exercise uses a simple router triangle topology. The lab begins with the three routers having their interfaces up and working and with IPv4 addresses configured. Your job: look at the design details and choose the correct RIP Version 2 (RIPv2) configuration to match the design. The specific rules for this lab are:

  • Use RIP Version 2 only
  • Do not automatically summarize routes at the boundary between classful networks
  • Use only the required commands
  • Assumptions:
    • All router interfaces shown in the lab are up and working
    • All router interfaces have been pre-configured with the IPv4 addresses shown in the figure

Figure 1: Router Triangle Topology


Initial Configuration

Examples 1, 2 and 3 show the beginning configuration state of R1, R2, and R3.


Example 1: R1 Config


Example 2: R2 Config


Example 3: R3 Config


Answer on Paper, or Maybe Test in Lab

Next, write your answer on paper. Or if you have some real gear, or other tools, configure the lab with those tools.

To test your solution if you happen to try it with CML/VIRL or real gear, you can check by going to each of the routers and attempt to ping the interface IP addresses of the other routers. This can then be extended by using an extended ping (or traceroute) from each of the routers using a source interface of each respective Loopback0 interface.

You should also try the show ip route command. With this topology, once configured correctly per this lab, each router should list three connected routes and three RIP-learned routes.


Do this Lab with Cisco’s CML (Formerly VIRL)

You can do these labs on paper and still get a lot out of the lab. As an extra help, we have added files for Cisco Modeling Lab – Personal (CML-P). CML-P replaces Cisco Virtual Internet Routing Lab (VIRL) software, in effect serving as VIRL Version 2.

Below, find two files: a file useful with CML-P and another useful with VIRL. (Note that the CML-P file has a .yaml filetype, while the older VIRL file has a VIRL filetype.) Once the file is loaded, CML-P or VIRL will create a lab topology similar to this lab’s topology, with the initial configuration shown in the lab as well.

This lab’s CML file!

This lab’s VIRL file!

All interfaces in topology match the lab figure.

Answers: SCP 1
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By certskills May 25, 2016 09:05
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