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BGP transit anaunce do not pass thru AS

Неотвеченый вопрос
Май 1st, 2016
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One of our customers start to anaunce us its own /23 prefix via BGP

We get it via neig pref-list in & see it in global bgp-table on our router, but when we try to anaunce it to one of our uplinks - we dont see it in adv-routes.

Trying to advertise prefix via neig pref list & filter-list as-path syntax :

permit ^$
permit ^ASNUM$

No result.

So, where can be a problem ?


I have this problem too.
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Alexey Nesterkin чт, 05/12/2016 - 01:43
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    Russian Member's Choice: May 2016

Check customer prefix. May be it use ASpath prepend, for example: ASNUM_ASNUM_ASNUM.

Your filter was correct, because LOCALAS added after as-path filter.

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