Deny traffic to a
specific network by using a static route to the null 0 interface.
Equipment Requirements:
Two Routers
One Switch with two VLANS set or two
switches or two hubs
Two workstations
Scenario:
We want to stop traffic from the
172.32.4.0 network from reaching the 172.32.2.0 network without the
overhead of access-list processing. We will use the null 0 interface
to drop all traffic for the 172.32.2.0 network into the proverbial bit
bucket.
Step 1
Construct the above circuit, using
IGRP as your routing protocol. Use the network address 172.32.3.0/24
on the serial link between the two routers.
Upon completion of the
configuration, ping and trace from the 172.32.4.2 workstation to
the 172.32.2.2 workstation and vice versa.
NOTE: In windows the command is
"tracert 172.32.2.2"