Redistribute OSPF to RIPv2 on layer 3 switch

[franklin.shearer]

I'm trying to figure out how to redistribute OSPF on my 3825 router to RIPv2 on a 3560 over a trunk link. Is this possible? Brief description of my network 1 3825 router with a HWIC-4RSW running cme with 4 subinterfaces on gig0, gig1 is directly connected to a 3560 which is housing a host of virtual servers with private vlans. and port 0 of the HWIC is tieing in another 3825. All my switches 19 of them are trunked from a vtp switch. I'm tieing the external 3825 with ospf and redistributing it to my ripv2 on my router, but the rip isn't being passed down to the switches. I'm really new to switching and routing, and got the basics, just seeing how I can redistribute to rip that is running on my other switches. Thanks (working on a packet tracer of my network so I have a visual for help)

[Peter Paluch]

Hello Franklin,

The router performing the redistribution must run both OSPF and RIP. They must be fully working before, i.e. you must see both OSPF and RIP routes being learned on that router. The redistribution of OSPF into RIPv2 must be configured in the RIP protocol configuration, and should look as follows (assuming you are running OSPF process number 1):

router rip

redistribute ospf 1 metric 1

Using the "metric 1" is important because with redistribution, the original route metric usually cannot be simply copied to the destination routing protocol, and instead, a new starting (sometimes called seed) metric must be defined. EIGRP and RIP require this metric to be explicitly specified, otherwise, the route will not be redistributed. Perhaps this is the case with your configuration.

Best regards,

Peter