Behavior of RIP and IGRP When Sending and Receiving Updates

On April 2, 2009, in Cisco *STUFF*, IGRP, RIP, Routing, Static Routes, by Divin John

Send Updates When RIP or IGRP send an update, they perform certain checks before they advertise the update. This list shows the sequence of events that occurs before Router 1 sends updates to Router 2. The network diagram allows you to examine the sequence of events more closely. Is the subnet information part of the [...]

Perils of ip route x.x.x.x 255.255.0.0 NextHopIP – Work Around

On April 1, 2009, in Cisco *STUFF*, Routing, Static Routes, by Divin John

In this network diagram, there are two static routes to the same destination (172.31.10.0/24). One route is a floating static, it is the “backup” or redundant path to the destination network on the LAN. The problem in the scenario is that the floating static route never gets installed in the routing table when the primary [...]

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