RIPv2 Options 1

certskills
By certskills June 8, 2016 09:05

It’s baaack… RIPv2 is back, and in the new ICND1 book per the new ICND1 100-105 exam topics announced May 2016. The book’s out now. RIP Version 2 (RIPv2) configuration requires a series of RIP network commands, but it also includes some other related optional configuration commands. This next lab includes some requirements for those options to help you round out your thinking about RIP configuration.

Requirements

Examine the topology diagram, which also includes IP addressing details. The upcoming examples show the initial configuration as well, in which all the interfaces on all routers have been enabled and their IPv4 addresses assigned. However, no static routes have been configured, and no routing protocols have been configured.

Your job for this lab is to add RIPv2 configuration for this small network. Specifically:

  • Configure RIP version 2 on all routers for all interfaces and subinterfaces shown in the figure
  • Disable RIP auto-summary, but only where required, so that no router automatically creates a summary route for an entire classful network
  • Disable RIP Updates from being sent out interfaces in cases where not other routers exist in the subnets connected to those interfaces
  • On each router, consider the maximum number of routes a router could have to any one destination subnet, and then configure the router to limit itself to using that many routes
  • Assumptions:
    • All router interfaces shown in the lab are up (including ROAS on R1), working and configured with IP addresses
    • All VLANs have been correctly created and assigned on Switch

Figure 1: Topology for this Lab

 

Initial Configuration

Examples 1, 2, 3 and 4 shows the beginning configuration state of R1, R2, R3 and Switch.

 

Example 1: R1 Config

 

Example 2: R2 Config

 

Example 3: R3 Config

 

Example 4: Switch 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 VIRL or real gear, you can check by looking at the IP routing table and verifying that RIP updates have been received for all displayed networks. You can further verify that each of the devices are able to reach all other IP addresses displayed (this will show if your selection of which devices to remove auto-summarization was correct). Next you can verify that the passive interfaces and maximum paths listed in the output of the show ip protocols command matches the requirements.

 

Do this Lab with Cisco’s 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 the Virtual Internet Routing Lab (VIRL) software as well. The .VIRL file found here is a file that when used with VIRL will load a lab topology similar to this lab’s topology, with the initial configuration shown in the lab as well. This section lists any differences between the lab exercise and the .VIRL file’s topology and configuration.

Download this lab’s VIRL file!

All interfaces in topology match the lab figure.

Answers: Syslog 1
Answers: RIPv2 Options 1
certskills
By certskills June 8, 2016 09:05
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