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With the creation of IGRP in the early
1980s, Cisco Systems was the first company to solve the problems
associated with using RIP to route datagrams between interior routers.
IGRP determines the best path through the internetwork by examining the
bandwidth and delay of the networks between routers. IGRP converges
faster than RIP, thereby avoiding the routing loops caused by
disagreement over the next routing hop to be taken. Further, IGRP does
not share the hop count limitation of RIP. As a result of this and other
improvements over RIP, IGRP enabled many large, complex, topologically
diverse internetworks to be deployed. These are the steps to follow to convert
from RIP to IGRP.
- Verify existing routing protocol (RIP)
on the routers to be converted.
- Configure IGRP on RouterA and RouterB
- Enter
show ip protocols
on RouterA and RouterB
- Enter
show ip route
on RouterA and RouterB
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Lab Activity
Lab Exercise: Default Routing with RIP and IGRP
This lab is to configure a default
route and use RIP to propagate this default information to other
routers.
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Lab Activity
e-Lab Activity: Configuring Default Routing with RIP and IGRP
In this lab, the students will configure a default route and
use RIP to propagate this default information to other routers.
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