RIP Lab/Assignment 1 - Part 2

The work you do in this lab will form the second part of your first assignment.

Laboratory Tasks

Reconfigure the router as per the previous lab - hopefully you can just download the configuration that you saved!
Disable network telnet access using the following commands (issued beginning in configuration mode):
```
Rx(config)#line vty 0 4
Rx(config-line)#login
Rx(config-line)#no password
```
This is something that you should do on all Cisco routers. The line command selects virtual terminals numbered 0 through 4 (ie. all 5 network interfaces). The login command requires a password be provided to login, however the no password command removes all passwords, hence disabling telnet access (try specifying a password then telneting to your router, if you're curious!).
Remove the static routing entries that you previously created.
Configure your router to participate in RIP on all interfaces. It would be a good idea to enable RIP version 2 and disable classful routing!
Ensure that your router is learning routes from other routers, by examining its routing table (look for routes with type 'R'):
```
show ip route
```
You may want to try enabling RIP debugging, in order to see what your router is actually doing:
```
debug ip rip
```
This can be disabled by running the same command with a no before it (as you should have expected!).
Confirm that you can reach the central computer from each of your (four) networks. Record evidence of this eg. capture a ping session from a computer plugged into each of your subnets (via the one hub).
Confirm that you can reach the other group's routers (naturally this depends on their competence at router configuration. You won't be penalised if they can't get their router configured).
When you are happy that the network is stable (you must consult other groups), record a copy of your routing table. Wait till near the end of the lab session to do this - the other groups may have their routers going by then.
Capture a RIP packet from each of the five interfaces on your router. It is essential that the RIP packets and the routing table are consistent - make sure your routing table has not changed while you were capturing RIP packets.
If you have all of the above working, try configuring your router so that it increases the metric for routes to the 192.168.10.0/24, 192.168.20.0/24, 192.168.30.0/24 and 192.168.40.0/24 networks by 2 hops. You will need to implement an offset list and an access list in order to achieve this.

Analysis

Dissect each of the RIP packets to see what routes the router is advertising (and what the hop-count is for each advertisement).
Explain how and why each of the RIP advertisements differs from the routing table.

Report

Printed evidence of your work is required as follows (to be submitted after both parts 1 and 2 have been completed):

Your analysis of the router responses to ping packets (from part 1).
Your analysis of the RIP advertisements (from part 2).
A copy of your router configuration with static routes.
A copy of your routing table with static routes.
A copy of your router configuration with RIP.
A copy of your routing table with RIP.
Discuss the effect of asymmetric filtering. Who gets told a packet has been filtered (blocked)? Who doesn't get told?
Include anything else about your investigations that will amaze or delight me.

Whilst your reports must be submitted individually, you are welcome to work in groups to undertake the investigation and research component. If you do this please identify this in your report.

Due date: Wednesday 08/04/2009 at 5pm