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RE: Vonage complains about VoIP-blocking
> -----Original Message----- > From: Jay Hennigan [mailto:[email protected]] > Sent: Tuesday, February 15, 2005 5:10 PM > To: Hannigan, Martin > Cc: Eric Gauthier; [email protected] > 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.