VoIP protocols normally use 2 connection: * 1 for control (eg on port 5060 for sip) * 1 for the RTP (media stream) The latter hasn't a fixed port, since is negotiated by the control connection. That could cause some troubles with NAT & firewalls.
IAX doesn't use 2 ports, but only one . So on the same port it brings the control connection & the RTP stream. So NATting IAX isn't a problem Matteo. Il sab, 2003-09-27 alle 11:46, Holger Schildt ha scritto: > Hi, > > I know that IAX also works between networks using NAT, but SIP or H.323 > doesn't. I wonder what is the reason for this behavior? Is there a > difference between this protocols acccording to NAT? > > > Thanks in advance! > Holger -- Brancaleoni Matteo <[EMAIL PROTECTED]> Espia - Emmegi Srl _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
