Learning by Doing: CISCO Certified Network ... - SCN Research

Step-By-Step Instructions:
1. Cable the lab as shown and set up the basics on each router. Choose a routing
protocol and set it up on each router (don’t forget to advertise your networks).
Add the loopback interface configurations.
2. To set up the routers for subinterfaces. The important thing here is to
understand which ip addresses and which dlci numbers to use. Let’s look at
the three PVC’s we will be creating here first:
Shadow
18
circuit #1 circuit #2
16 17
Diekman
circuit #3
Knight
The design key is to remember the dlci connection number. If you are
configuring “knight” router (almost funny, huh?) which has a connection to dlci
17 then you will need to set up connection with dlci 16 and 18. The drawings
used by CISCO are difficult to understand unless you have developed your own
step-by-step method (what a coincidence! That is what you are getting here!).
First we need to pick out some subnet numbers for our three circuits. Let’s use
these:
circuit #1 192.168.1.0 network (use .1 and .2)
circuit #2 192.168.2.0 network (use .1 and .2)
circuit #3 192.168.3.0 network (use .1 and .2)
Next we need to associate them with the dlci numbers. Usually you will see them
given in a picture as shown on the top of the next page. You can see why these
things can be confusing. The DLCI’s really help. It is easier to
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