From: Tim Wilhoit (tilimil@xxxxxxxxxxx)
Date: Sat Apr 27 2002 - 21:15:48 GMT-3
How would you ever see a paren in the AS path? Maybe I missed the boat
here...ive never seen that.
----- Original Message -----
From: "ying chang" <ying_c@hotmail.com>
To: <Guy.Lupi@eurekaggn.com>; <ccielab@groupstudy.com>
Sent: Friday, April 26, 2002 8:25 PM
Subject: Re: AS path filter for confederation
> Hi Guy,
>
> When you replace the first statement's ^_14__27$ with ^(14)_27$ you get
> ^14_27 as far as regular expression concerns. Just remember parenthese in
ip
> as-path statement has its own special meaning, than everything would
become
> clear.
>
> I hope I don't confuse you.
>
> Chang
>
> >From: "Lupi, Guy" <Guy.Lupi@eurekaggn.com>
> >Reply-To: "Lupi, Guy" <Guy.Lupi@eurekaggn.com>
> >To: "'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
> >Subject: AS path filter for confederation
> >Date: Fri, 26 Apr 2002 19:09:51 -0400
> >
> >I am trying to use an as path filter to match a route, I have one that
> >works
> >and one that doesn't. I can't figure out why the first one doesn't work,
> >as
> >I thought that the underscore is a match on parantheses also. What is
> >wrong
> >with the first statement? Thanks.
> >
> >
> >ip as-path access-list 1 permit ^_14__27$ ----- This one doesn't work
> >ip as-path access-list 1 permit ^\(14\)_27$ --- This one works
> >
> >This is the route I am trying to match.
> >
> >i0.0.0.0 2.2.2.2 0 0 (14) 27 i
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