Saturday, May 7, 2011

IP Prefix Notes

How a Prefix List Match Works
The matching is similar to that of the access-list—more specifically:
· An empty prefix list permits all prefixes.
· An implicit deny is assumed if a given prefix does not match any entries of a prefix list.
· When multiple entries of a prefix list match a given prefix, the one with the smallest sequence is considered as the “real” match. In short, the first match wins!

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