Interior Route Redistribution Lab

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11/06/01
Date of Issue: 12-01-1999
Interior Route Redistribution
by Ronald Trunk
Lab Scenario
Discussion
Incomplete Router Configurations
Helpful Hints
Solution
Lab Scenario
Please refer to Figure 1. The challenges of this lab scenario, listed below, all relate to the configuration shown this
figure.
Figure 1.
1. Connect the routers as shown in Fig. 1. Routers Alpha and Bravo run OSPF. Routers Alpha and Charlie run RIP.
2. Using the address block 134.114.0.0, create three stub networks on Bravo with 27-bit masks, and one stub network
with a 24-bit mask. Create two stub networks on Charlie with a 24-bit mask. Number the serial links between the
routers from the remaining address space, using a 24-bit mask.
3. Mutually redistribute routes between the domains. OSPF routes should be given a metric of 6 in the RIP domain.
RIP routes should be given a metric of 500 in the OSPF domain. Verify that all routers can reach all networks.
4. Modify your configuration so that Alpha only accepts only one of the stub networks from Charlie.
Discussion
To do well on the CCIE lab exam, you must be able to spot potential problems you will encounter as you create your
design. While you are given some explicit instructions on how to configure your routers, there will be some steps that
will not be explicitly stated. You will have to spot these issues quickly. For example, what issues will you have with the
scenario as stated?
To help you discover the issues, we have provided some incomplete
router configurations and sample outputs. These configurations are not
complete - they do not take into account all the issues that you will have
to deal with in this scenario.
If you are having trouble spotting the issues, here are some hints.

When you have completed the scenario, the "show" commands from the routers should look similar to these
examples.
[IE-InRe-LS1-F03]
Note:
These links should open in new browser
windows. You can open several at a
time and switch between them. Simply
close the window(s) to return to this
document.
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