From: austin stone (amitkjoshi.cisco@gmail.com)
Date: Sat Feb 21 2009 - 17:54:27 ARST
Hi all,
I tried configuring prefix list for the following network:
192.168.10.0
192.168.11.0
192.168.12.0
192.168.13.0
192.168.14.0
192.168.15.0
192.168.16.0
192.168.20.0
192.168.21.0
To deny 192.168.20.1 and 192.168.21.1... I configure like as follows;
ip prefix-list TEST permit 192.168.8.0/21 ge 24 le 24
And I got the expected result..
But I when I wanted to deny all the routes and allow only 192.168.20.1 and
192.168.21.1
I tried configuring like :
ip prefix-list TEST permit 192.168.2.0/23 ge 24 le 24
Did not get expected output...
again tried :
ip prefix-list TEST permit 192.168.16.0/23 ge 24 le 24....
neverthless did not get expected output..
But when I configured following loopbacks :
192.168.22.0 192.168.23.0
192.168.24.0
192.168.26.0
And tried configuring :
ip prefix-list TEST permit 192.168.16.0/20 ge 24 le 24
I got the perfect output...i.e. it denied all the router from 10 to 15 and
allowed routes from 20 to 26..
Then why could not I get the proper result for 20 and 21..
Please advise.
Thanks..
Amit joshi
Blogs and organic groups at http://www.ccie.net
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