[isp-bgp] Re: bgp advertising

[Iljitsch van Beijnum <iljitsch@...]

On maandag, apr 7, 2003, at 00:10 Europe/Amsterdam, Jacques VUVANT 
wrote:

> If I want also to match my customer's AS (18900) on route-map OUT, how
> should as-path access-list be ?
> (He should send me 18900, 18900 18900...)
If your AS is 18200 and your customer is 18900 and either or both may 
prepend:

ip as-path access-list 2 permit ^(18200_)*$          ! zero or more 
your own AS
ip as-path access-list 2 permit ^(18200_)*(18900_)+$ ! and customer one 
or more


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