RE: Redistribution between 3 different routing protocols...

From: Geert Nijs (geert.nijs@simac.be)
Date: Fri Oct 22 2004 - 04:37:20 GMT-3


Captain Spock, (?)
 
It doesn't work that way. If you are running 3 routing protocols on 1 router, you will need 2 redistribute commands in all 3 router processes.
Redistribution looks TO THE ROUTING TABLE to determine which routes to inject.
So if you type: redistribute static, the router looks to the routing table, searches for static routes, and injects them into the routing process.
 
So if you are redistributing OSPF into EIGRP, the router looks to the routing table, takes OSPF routes, and injects them into EIGRP as external
routes. The injected routes STAY IN YOUR ROUTING TABLE as OSPF routes. When you then redistribute EIGRP into BGP,
the router takes the EIGRP routes and injects them into BGP. The OSPF routes which you injected in EIGRP, will NOT be included, since
they are OSPF routes in the routing table, NOT EIGRP routes.
So you WILL also need a "redistribute ospf" command under the BGP process.
 
Regards,
Geert #13729

________________________________

From: nobody@groupstudy.com on behalf of Capt.Spock
Sent: Thu 10/21/2004 12:36
To: ccielab@groupstudy.com
Subject: Redistribution between 3 different routing protocols...

A router is running three routing protocols say RIP,OSPF,EIGRP.

If I redistibute mutually RIP and OSPF, OSPF and EIGRP then is there a
need to redistribute between EIGRP and RIP also?

Will A=B; B=C; make A=C ?

Thanks!



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