Re: BGP Filter Question

From: Ivan (ivan@iip.net)
Date: Fri Feb 03 2006 - 06:26:56 GMT-3

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did you try to set noexport community for "directly connected customers
BGP-sessions" ?

> What is considered "directly connected customer" in case of BGP?
>
> Let say R1 is receiving some prefixes from 2 nbrs:
>
> 1.1.1.1 AS path= 254 100 200 300
> 2.2.2.2 AS path= 254 50
>
> Let say we wanna only allow AS 254 and its directly connected customers
> - does it mean that it should
> be only 1 AS behind 254 (like 1 hop)?
>
> I see examples permitting ^254(_[0-9])*$ which is not correct IMO as it
> will allow any numbers of ASs
> behind 254.
>
> Nadeem
>
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-- 
Ivan

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