From: li jian hua (jasonli@xxxxxxxxx)
Date: Fri May 24 2002 - 01:46:13 GMT-3
Prior to Cisco IOS? Software Release 12.1(6), it was recommended to
manually configure, on the ABR, a discard static route for the summary
address in order to prevent possible routing loops. For the summary route
shown above, you can use this command:
ip route 128.213.64.0 255.255.224.0 null0
In IOS 12.1(6) and higher, the discard route is automatically generated by
default. If for any reason you don't want to use this discard route, you
can configure the following commands under router ospf:
[no] discard-route internal
or
[no] discard-route external
At 20:36 2002-5-23 -0700, Jeongwoo Park wrote:
>Hi
>I was wondering what could be equivalent to using null interface.
>I was redistributing ospf route 170.100.100.6/27 into igrp with the summary
>address of 170.100.100.0/24.
>Once you summary under ospf, it is a must that you should use null
>interface( ip route 170.100.100.0 255.255.255.0 null 0). Since using null
>interface is considered static route, what could be the substitute for that?
>I tried with distribute-list, but didn't work.
>
>Thanks
>
>JP
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:59:07 GMT-3