[49023] in North American Network Operators' Group
Re: query about determining ingress interface
daemon@ATHENA.MIT.EDU (Vadim Antonov)
Thu Jun 20 20:26:35 2002
Date: Thu, 20 Jun 2002 17:25:09 -0700 (PDT)
From: Vadim Antonov <avg@exigengroup.com>
To: Randy Bush <randy@psg.com>
Cc: <nanog@merit.edu>
In-Reply-To: <E17L9mP-000Loc-00@rip.psg.com>
Errors-To: owner-nanog-outgoing@merit.edu
Wouldn't it be nice for router vendors to include traceroute servers into
basic router features, and bury the expensive (in silicon) and dangerous
(for inattentive sysadmins) source-routing IP options?
(...keeps dreaming... :)
--vadim
On Thu, 20 Jun 2002, Randy Bush wrote:
>
> > Is there a way for an ISP to determine the ingress router interface at
> > its network border that will carry IP traffic _from_ an IP address not
> > owned by it?
>
> traceroute -g, which is what insisting on lsr is all about
>
> randy
>
