nanog mailing list archives

Re: Single AS multiple Dirverse Providers


From: "Patrick W. Gilmore" <patrick () ianai net>
Date: Mon, 10 Jun 2013 13:08:48 -0400

however, providers a/b at site1 do not send us the two /24s from
site b..

This is probably incorrect.

The providers are almost certainly sending you the prefixes, but your router is dropping them due to loop detection. To 
answer your later question, this is the definition of 'standard' as it is written into the RFC.

Use the allow-as-in style command posted later in this thread to fix your router.

-- 
TTFN,
patrick


On Jun 10, 2013, at 12:36 , "Dennis Burgess" <dmburgess () linktechs net> wrote:

I have a network that has three peers, two are at one site and the third
is geographically diverse, and there is NO connection between the two
separate networks.



Currently we are announcing several /24s out one network and other /24s
out the second network, they do not overlap.  To the internet this works
fine, however, providers a/b at site1 do not send us the two /24s from
site b..   We have requested them to, but have not seen them come in,
nor do we have any filters that would prohibit them from coming in. 



Is this normal?  Can we receive those routes even though they are from
our own AS?  What is the "best practice" in this case?  



Dennis Burgess, Mikrotik Certified Trainer Author of "Learn RouterOS-
Second Edition <http://www.wlan1.com/product_p/mikrotik%20book-2.htm> "

Link Technologies, Inc -- Mikrotik & WISP Support Services

Office: 314-735-0270 <tel:314-735-0270>  Website:
http://www.linktechs.net <http://www.linktechs.net/>  - Skype: linktechs
<skype:linktechs?call>

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