Scenerio: I need to use route tagging to control mutual route redistribution between Ripv2 and EIGRP on a 6500 Sup 720 running 12.2(33)SXI3. At the same time I would also like to summerize the routes on the interface between the two AS's (ie the RIPv2 interface). RIPv2 is used to conect to another location running non-Cisco gear that I have little control over. In the attached diagram I have control over the devices at site 1, site 2 and site 3.
I can use a route-map as part of the EIGRP->RIPv2 redistribution to set all the tags but my question is what happens to those tags when I summerize the routres at the interface? In this scenerio MOST of the routes within a summary range will share the same tag but that is not neccessarily always true.
Summerizing is not 100% neccessary so if it causes more problems then its worth I can leave it out. I have included a sanatized diagram of the network to help show whats going on.
I will comment that there are a host of other requirements embedded in this diagram so its a little hairy and the notes are psuedo-code that would be translated into route-map match and set conditions in the real configs.
Thanks for looking
Nathan Spitzer Sr. Network Communication Analyst Lockheed Martin
A summary route is less specific and used only if no more specific route (regardless of AD value) for the destination address exists.>
Yeah. The whole purpose of this is to get away from controlling the routes manually. The current method used is UGLY with 2 30+line access lists on each end (ingress and egress). Adding a new range on either end requires going through a whole change control process and sometimes still gets messed up so we want something automatic.
Its not nearly that simple (unfortunately). EIGRP2 has a default gateway that is not shown. The RIP link is only for routes in the OSPF area and a subset of routes in EIGRP 1.
Don't I know it. Made it much more difficult to come up with consistent meaningful tags. The OSPF guys HAD to pick a big long IP-type address for their OSPF area .
I have a feeling I may jetisone summerization and get over myself.
Good ideas but the whole goal is something automatic so new ranges automagically get routed right. Auto-summary is not an option due to the way the networks are cut up. Basically, we have bits n pieces of class B's.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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