[81291] in North American Network Operators' Group
Re: URPF on small BGP-enabled customers?
daemon@ATHENA.MIT.EDU (Joe Abley)
Fri Jun 3 10:48:19 2005
In-Reply-To: <42A06888.5040304@nrg4u.com>
Cc: christian.macnevin@uk.bnpparibas.com, christopher.morrow@mci.com,
will@loopfree.net, nanog@merit.edu
From: Joe Abley <jabley@isc.org>
Date: Fri, 3 Jun 2005 10:44:45 -0400
To: Andre Oppermann <nanog-list@nrg4u.com>
Errors-To: owner-nanog@merit.edu
On 2005-06-03, at 10:26, Andre Oppermann wrote:
>
> christian.macnevin@uk.bnpparibas.com wrote:
>
>> I guess it's been a while since I've played with it, but isn't
>> this pretty
>> well what happens with uRPF anyhow?
>>
>
> No, my proposal works as long as the customer advertizes their
> prefixes
> via BGP, not matter how long the path or what community attributes are
> set (for example NOEXPORT). No matter how they send it, as long as
> they
> send it, it works fine.
So, your proposal is loose-mode uRPF?
