Use a default network with IGRP to setup a gateway of last resort
on all IGRP routers.
Scenario:
You have an IGRP routing domain with only one outside link. You
want all routers to send packets to that gateway, if there is not an
explicit route listed in the routing table.
Lab Task:
Cable the lab and all interfaces as shown in the diagram.
Verify that IGRP is configured correctly and all routes are
listed in the routing table. On Router C the 10.0.0.0 network
should be directly connected, but not listed in the routing table
of the other routers.
Is there a gateway of last resort set in the routing tables of
all the routers? Try to ping and trace to 10.1.1.1 and 10.1.1.2
from Router A and Router B. Does it work? Record your answers
below.
Configure Router C to advertise a gateway of last resort.
Issue the command show ip route on all routers to see if the
candidate default route is listed. Is there a gateway of last
resort listed in the routing table of every router?