differencec between prefix-list and distribute-list

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Apr 4th, 2007

i would like to know the differencec between prefix-list and distribute-list

I have this problem too.
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Richard Burts Wed, 04/04/2007 - 06:22


The difference between prefix-list and distribute list is that prefix-list provides the logic to identify and to permit or deny certain routes and distribute-list is the command configured in a routing protocol when you want to exert some control over routing updates. Traditionally a distribute-list used an access list to identify the routes but now distribute-list can also use prefix-list to identify the routes.

Perhaps an analogy may help the explanation: think about access-list and access-group. The access-list identifies certain traffic and permits or denies it. The access-group is used to assign an access-list to an interface. In a similar way a prefix-list identifies routes and permits or denies them and the distribute-list can assign the prefix-list to a routing protocol.



Danilo Dy Wed, 04/04/2007 - 06:35


As how I use them in BGP

"distribute-list" can call a pre-defined ACL number or prefix-list. "distribute-list in" to filter incoming BGP updates, "distribute-list out" to filter outbound BGP updates.

prefix-list can call a pre-defined prefix-list only. It can be use as an alternative to distribute-list.


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