nanog mailing list archives
RE: Vonage complains about VoIP-blocking
From: "Hannigan, Martin" <hannigan () verisign com>
Date: Tue, 15 Feb 2005 17:14:13 -0500
-----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 On Tue, 15 Feb 2005, Hannigan, Martin wrote: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.Vonage devices initiate an outbound TFTP connection back to Vonage to snarf their configs on initial connection and also (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.
Current thread:
- Re: Vonage complains about VoIP-blocking, (continued)
- Re: Vonage complains about VoIP-blocking Jon Lewis (Feb 16)
- Re: Vonage complains about VoIP-blocking John Kristoff (Feb 15)
- Re: Vonage complains about VoIP-blocking Eric Gauthier (Feb 15)
- Re: Vonage complains about VoIP-blocking John Levine (Feb 15)
- Re: Vonage complains about VoIP-blocking John Todd (Feb 16)
- RE: Vonage complains about VoIP-blocking Hannigan, Martin (Feb 15)
- RE: Vonage complains about VoIP-blocking Hannigan, Martin (Feb 15)
- RE: Vonage complains about VoIP-blocking Jay Hennigan (Feb 15)
- RE: Vonage complains about VoIP-blocking Nathan Allen Stratton (Feb 15)
- RE: Vonage complains about VoIP-blocking Michael Hallgren (Feb 15)
- RE: Vonage complains about VoIP-blocking Jay Hennigan (Feb 15)
- RE: Vonage complains about VoIP-blocking Hannigan, Martin (Feb 15)
- RE: Vonage complains about VoIP-blocking Bruce Campbell (Feb 15)
- RE: Vonage complains about VoIP-blocking Michael Hallgren (Feb 15)
- Re: Vonage complains about VoIP-blocking Stephen Sprunk (Feb 15)
- Re: Vonage complains about VoIP-blocking Nathan Allen Stratton (Feb 15)
- RE: Vonage complains about VoIP-blocking Bruce Campbell (Feb 15)
- RE: Vonage complains about VoIP-blocking Jason L. Schwab (Feb 15)
- Re: Vonage complains about VoIP-blocking Daniel Golding (Feb 15)
- RE: Vonage complains about VoIP-blocking Michael Hallgren (Feb 15)
- RE: Vonage complains about VoIP-blocking Nathan Allen Stratton (Feb 15)
- RE: Vonage complains about VoIP-blocking Michael Hallgren (Feb 15)
- Re: Vonage complains about VoIP-blocking Chris Parker (Feb 15)
- Re: Vonage complains about VoIP-blocking Daniel Golding (Feb 15)