[c-nsp] Using same AS number

Jonathan Crawford jj at powerset.com
Wed May 14 05:04:00 EDT 2008


You can specify "neighbor <neighbor> allowas-in" to bypass this check. I'd proceed carefully if using it... as you are defeating one of the loop detection mechanisms, filter well.

-Jonathan

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Rudy Setiawan
Sent: Tuesday, May 13, 2008 11:36 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Using same AS number

Hi all,

As per BGP rule, that if a router sees its own AS in the path, it will
filter them out of the prefixes.

So if I have two locations with different providers and no direct
connection to each other, what's the best way to be able to use the
same AS and yet still sees the prefixes/routes?

Thank you all in advance for the help.

Regards,
Rudy
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