Prefix and Prefix based

From: David Timmons (masterdt@yahoo.com)
Date: Fri Jul 14 2006 - 18:58:31 ART


Hi,

Anyone have a good handle on what a prefix based
method of.....

I have seen many questions that say not to use a
prefix based method or implement a prefix based
method. I always take this to mean anything that
filters on an IP address. I think a prefix is
synonymous with an IP address: prefix mask is the
mask. So, if I were told not to use a prefix based
method, I would assume I could neither use an ACL nor
prefix list.

Don't use a prefix based method to remove a route from
an OSPF redistribution...

for example, I would assume the following are bad

Route-map whyme
match ip add 1
or
match ip add pref x

maybe we can match interface...



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