[22651] in North American Network Operators' Group
RE: source filtering
daemon@ATHENA.MIT.EDU (Scott McGrath)
Thu Jan 14 09:03:00 1999
From: Scott McGrath <SMcGrath@YBP.com>
To: Tony Tauber <ttauber@bbnplanet.com>, Scott McGrath <SMcGrath@YBP.com>,
Jared Mauch <jared@puck.nether.net>, nanog@merit.edu
Date: Thu, 14 Jan 1999 08:38:35 -0500
I only spoke from my own experience with both carriers no offense intended
> -----Original Message-----
> From: Tony Tauber [SMTP:ttauber@bbnplanet.com]
> Sent: Wednesday, January 13, 1999 10:38 PM
> To: Scott McGrath; Jared Mauch; nanog@merit.edu
> Subject: Re: source filtering
>
> 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
