From: Manny Gonzalez (manny@xxxxxxx)
Date: Mon Feb 11 2002 - 22:20:36 GMT-3
I don't think you can de-summarize as you claim to have done.
Summarization is always done to a less specific route as I like to call
it. Actually, the term in BGP is what I believe describes it best:
AGGREGATION, not the other way around... You are trying to PEEL AWAY a
more specific route from a supernet. That, in my opinion, is not
summarizing.
But, as usual, I will defer to the experts in here :-))
Good luck in your exam.
Weizhong lu wrote:
>
> Hi,
>
> After summarizing a 21 bit mask super-subnet into a 24
> bit subnet in ospf process in order to redistribute
> into igrp, this 21 bit mask could not be pinged by
> ospf router because the cidr.
>
> Does any one know how to solve this configuration
> issue?
>
> Since I my lab date is the end of month, your help is
> really appreciated.
>
> - William
> ---------------------------------------------------------------------------
> Here is the configuration:interface Ethernet0
> ip address 150.3.113.1 255.255.252.0
> .....
>
> router ospf 1
> summary-address 150.3.113.0 255.255.255.0 tag 113
> redistribute igrp 1 subnets tag 1 route-map igrp2ospf
> network 150.3.113.0 0.0.0.255 area 113
>
> # sh ip route
> ....
> O 150.3.113.0/24 is a summary, 01:02:40, Null0
> C 150.3.112.0/22 is directly connected,
> Ethernet0
>
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