[22648] in North American Network Operators' Group
Re: source filtering
daemon@ATHENA.MIT.EDU (Tony Tauber)
Wed Jan 13 22:51:42 1999
From: "Tony Tauber" <ttauber@bbnplanet.com>
Date: Wed, 13 Jan 1999 22:37:55 -0500
In-Reply-To: Scott McGrath <SMcGrath@YBP.com>
"RE: source filtering" (Jan 13, 3:41pm)
To: Scott McGrath <SMcGrath@YBP.com>, Jared Mauch <jared@puck.nether.net>,
nanog@merit.edu
On Jan 13, 3:41pm, Scott McGrath wrote:
> Subject: RE: source filtering
> GTE and ATT both filter via access lists on the customers CPE routers IF
> they provide the routers to the customer
>
It'd be nice if this information came from one of the entities
named above. Here's a refinement for our part.
GTE does not impose mandatory source address filtering via
access-lists on customers' CPE routers. However, we have recently
implemented Cisco's "ip verify unicast reverse-path".
Tony Tauber
GTE Network Engineering
