Configuring IGRP
Although a few more configuration options are available to IGRP than to RIP, the basic configuration is every bit as simple: The router command is used to establish the routing process, and the networkcommand is used to specify each network on which IGRP is to run. As with RIP, only major network numbers can be specified because IGRP is also a classful protocol.
The commands neighbor, for sending unicast updates, and passive-interface, for preventing updates from being broadcast on selected subnets, were introduced in Chapter 5, “Routing Information Protocol (RIP).” They can be used with IGRP just as with RIP.
Offset-list was also introduced in Chapter 5. When used with IGRP, the offset variable is delay instead ...
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