>Is there a difference between using a distribution list and a
>routing policy to filter/forward traffic.
>I am looking for clarification where the process occurs, at the
>interface of durring the routing process ?
I discuss this at some length in my upcoming White Paper (third in a
series), which should be available in the public CCIE area at
www.certificationzone.com on the 1st.
>
>Thanks for any help
>Earl
>
>-----Original Message-----
>From: Martin Eriksson <<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]>
>To: <mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]
><<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]>
>Date: Wednesday, August 23, 2000 07:43
>Subject: accesslists outbounds?
>
>Hi!
>
>Found a little something in the CCNA Router and Switching Study Guide
>(<http://www.rkingma.com/cisco/TestHome.htm>http://www.rkingma.com/ci
>sco/TestHome.htm).
>that I can't really recall reading anywhere else..
>
>A simple scenario...
>
>s1 10.10.10.102
> |
> |---------------routerA---------s3 10.10.20.1
> |
>s2 10.10.10.101
>
>Access-list 1 permit 10.10.10.101
>Access-list 1 deny 10.10.10.0 0.0.0.255
>
>According to the text: " We could apply it as an inbound filter on
>Router A's interface to network 10.10.10.0, or as an outbound filter
>on Router A's interface to network 10.10.20.0. Outbound filters are
>less processor intensive for the router, so let's apply it
>outbound.".
>
>It's the last part I get confused with, "outbound filters are less
>processor intensive".
>I thought it was the opposite that it's better to stop the packets
>at the entry instead of the exit.
>
>I'm sure someone can sort things up for me..
>
>best regards!
>Martin, E
>
>
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