[119718] in North American Network Operators' Group
Re: Finding asymmetric path
daemon@ATHENA.MIT.EDU (ML)
Fri Nov 27 23:15:11 2009
Date: Fri, 27 Nov 2009 23:14:18 -0500
From: ML <ml@kenweb.org>
To: Randy Bush <randy@psg.com>
In-Reply-To: <m2tywfuw8n.wl%randy@psg.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Randy Bush wrote:
>> I'm reasonable certain a customer of ours who is using one of our
>> netblocks is using a different reverse path to reach us. How might I
>> figure out who is allowing them to source traffic from IPs that belong
>> to us?
>
> you are implying that they are not allowed to multi-home using the ip
> space you have assigned to them. good way to lose a customer.
>
> randy
Does it count as multihoming when we are the only ones announcing the space?