From: ying chang (ying_c@xxxxxxxxxxx)
Date: Sun Mar 31 2002 - 13:31:51 GMT-3
Not sure if you are aware of it or not, but here is the recap from Parry's
explaination yesterday, which should help us all out why we don't need the
first line:
The 2nd line make the first line redundance, reason is:-
^701_[0-9]*$ give us the following results:
- with "_" and "*" where * is zero instances we get (701)
- With "_" and "*" where * is more instancee we get (701 xyz) wher xyz is
any
valid as number.
>Parry Chua
>
>
>From: "GerbCraig" <gerbermc@mindspring.com>
>Reply-To: "GerbCraig" <gerbermc@mindspring.com>
>To: "ying chang" <ying_c@hotmail.com>, <bsin@erols.com>
>CC: <ccielab@groupstudy.com>
>Subject: Re: AS-path access-list
>Date: Fri, 29 Mar 2002 09:36:36 -0500
>
>In order to filter on an AS and any AS that is attached to it you must
>first
>include the AS itself and then the AS and its connected AS
>i.e.:
>
>ip prefix-list 1 permit ^701$ (permits the AS 701)
>ip prefix-list 1 permit ^701_[0-9]*$ (permits AS 701 and any combination of
>AS that may be attached to the 701 AS)
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