CCIE Pursuit Blog

January 16, 2008

Internetwork Expert Blog: Redistribution In IPv6

A very good post concerning the differences between route redistribution in IPv4 and IPv6:

In current IOS versions for IPv4 redistribution is a two step process. Let’s suppose that we are trying to redistribute RIPv2 into OSPFv2 by issuing the “redistribute rip subnets” command under the OSPF process. The first thing the router does is to look at the “show ip route rip” output. All of these prefixes are candidate to be redistributed into OSPF. Next the router looks at the “show ip route connected” output. The routes for any connected interfaces from this output running RIPv2 are also candidate to be redistributed into OSPF. In other words, we don’t have to issue the “redistribute connected subnets” to get connected interfaces that run RIP to be sent into the OSPF process.

For IPv6 whether or not connected links are included in redistribution is up to you at the time of configuration.

—Read the rest here—

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