nanog mailing list archives
Re: Single AS multiple Dirverse Providers
From: Matthew Petach <mpetach () netflight com>
Date: Mon, 10 Jun 2013 11:05:16 -0700
On Mon, Jun 10, 2013 at 10:08 AM, Patrick W. Gilmore <patrick () ianai net>wrote:
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.
As noted above, if your *provider* is running JunOS, that is incorrect; by default, Juniper will not send routes out were learned from the same ASN as the one to which the neighbor is configured. http://www.juniper.net/techpubs/software/junos/junos95/swconfig-routing/id-13225234.html#id-13255463 I've been bitten by this before. Matt
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> -- Create Wireless Coverage's with www.towercoverage.com <http://www.towercoverage.com/> - 900Mhz - LTE - 3G - 3.65 - TV Whitespace
Current thread:
- Re: Single AS multiple Dirverse Providers, (continued)
- Re: Single AS multiple Dirverse Providers Patrick W. Gilmore (Jun 10)
- Re: Single AS multiple Dirverse Providers Bruce Pinsky (Jun 10)
- Re: Single AS multiple Dirverse Providers Patrick W. Gilmore (Jun 10)
- Re: Single AS multiple Dirverse Providers Bruce Pinsky (Jun 10)
- Re: Single AS multiple Dirverse Providers Dan (Jun 10)
- Re: Single AS multiple Dirverse Providers Patrick W. Gilmore (Jun 10)
- Re: Single AS multiple Dirverse Providers Job Snijders (Jun 10)
- Re: Single AS multiple Dirverse Providers Patrick W. Gilmore (Jun 10)
- Re: Single AS multiple Dirverse Providers Brandon Ross (Jun 10)
- RE: Single AS multiple Dirverse Providers Dennis Burgess (Jun 10)
- Re: Single AS multiple Dirverse Providers Bruce Pinsky (Jun 10)
- Re: Single AS multiple Dirverse Providers Patrick W. Gilmore (Jun 10)