Saturday, July 5, 2008

No Supernetting in RIP

It isn't very often you learn something new about RIP, but here is something I found out today: NO SUPERNETTING WITH RIP!

R1(config)#int lo 100
R1(config-if)#ip address
R1(config-if)#int lo 101
R1(config-if)#ip address
R1(config-if)#int f2/0
R1(config-if)#ip summary-address rip
Summary mask must be greater or equal to major net


  1. so how do we fix that in rip means how do we do summarization in rip

  2. static route to null0 and redistribute

  3. According to u, i completed the lab successfully. One thing i just want to share..

    R1----- R2

    Doing summarization on R1. After summarization, summary route is appearing in R2. But i want to block all the network expect summary route.. I used prefix list to block & successfully implemented.

    I just want to know, it it correct way to do so...???

  4. If only the summary route that you want to be sent to R2, then you could remove the subnets from the rip network list and redistribute only the static route.


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