ip prefix-list question.

From: Kal Han (calikali2006@gmail.com)
Date: Sat Nov 25 2006 - 21:59:53 ART

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Hi

Question 1
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What is the meaning of a prefix list defined as follows

ip prefix-list mypl permit 10.*10*.0.0/8 ge 20 le 24

I have seen something like this at many places.
I didnt understand the second octet in the network address.
Does it make any difference given that the mask-bits length is 8 ?

I mean is there any difference between the following 3 ?
1) ip prefix-list mypl permit 10.0.0.0/8
2) ip prefix-list mypl permit 10.*10*.0.0/8
3) ip prefix-list mypl permit 10.*10.10*.0/8

Question 2
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when I have
ip prefix-list mypl permit 0.0.0.0/0 , what does it match ?

can it match 1.1.1.0 ?

how can I write a prefix-list to match a default route
and how to write a prefix-list to match anything ?

Thanks
Kal

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