[77979] in North American Network Operators' Group
RE: Vonage complains about VoIP-blocking
daemon@ATHENA.MIT.EDU (Jason L. Schwab)
Tue Feb 15 17:24:19 2005
Date: Tue, 15 Feb 2005 17:22:45 -0500
From: "Jason L. Schwab" <jlschwab@jlschwab.com>
To: "Hannigan, Martin" <hannigan@verisign.com>
Cc: <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
Hi;
I unplugged and reset my vonage Motorola MTA device, and it did tftp to
home to get its configs.
-Jason
-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of
Hannigan, Martin
Sent: Tuesday, February 15, 2005 3:14 PM
To: 'Jay Hennigan'
Cc: Eric Gauthier; nanog@merit.edu
Subject: RE: Vonage complains about VoIP-blocking
> -----Original Message-----
> From: Jay Hennigan [mailto:jay@west.net]
> Sent: Tuesday, February 15, 2005 5:10 PM
> To: Hannigan, Martin
> Cc: Eric Gauthier; nanog@merit.edu
> Subject: RE: Vonage complains about VoIP-blocking
>=20
>=20
> On Tue, 15 Feb 2005, Hannigan, Martin wrote:
>=20
> > > Something else to consider. We block TFTP at our border for
> > > security reasons
> > > and we've found that this prevents Vonage from working.
> > > Would this mean that
> > > LEC's can't block TFTP?
> >
> >
> > Was that a device trying to phone home and get it's configs?
> > Cisco, Nortel, etc. phone home and get configs via tftp.
> >
> > Vonage doesn't need to phone home for config. The device is
> > programmed (router) and it registers with the call manager.
> > If you analyze the transactions it's about 89% SIP and 11% SDP.
>=20
> Vonage devices initiate an outbound TFTP connection back to Vonage to
> snarf their configs on initial connection and also=20
> (presumably) on reboot.
I tested the reboot. I didn't see it. I agree in general
and think that providers shouldn't block tftp, IMHO.=20
