Anselm Martin Hoffmeister wrote: > Am Dienstag, den 09.10.2007, 19:50 +0100 schrieb WipeOut: >> Hi, >> >> Ok.. I know dual NAT is a problem for SIP.. >> ie. UA - NAT - Internet - NAT - Asterisk >> >> What about Multi-NAT where a dedicated public IP is mapped to the >> private IP of the asterisk box.. >> ie UA - NAT - Internet - Multi-NAT - Asterisk >> >> http://www.draytek.co.uk/support/kb_vigor_multinat.html >> >> Anyone tried it? > > My experience with SIP, Asterisk and more than one NAT in the path is > not a good one. For example, several of my SIP hardphones refused to > work behind a dual-NAT > > Phone (10.10.0.201) - NAT - internal net (192.168.174.0/24) - NAT - > Internet - Asterisk > > where everything else worked as usual. Admittedly multiple NATs are not > necessarily a good idea to have, but that was a customer's network, not > mine ;-) > > Also quite regular setups like > > Phone - NAT - Internet - NAT - Asterisk > > and > > 2 Phones - NAT - Internet - Asterisk without NAT > (One of those phones calling the other). > > might work - or just be a source of trouble. This also seems to depend > on the cooperation of the NAT device; some work better than others. > > IAX seems to handle NAT issues much better, in my experience, but I did > never have an IAX hardphone. > > BR > Anselm
For a small investment of time and money, you can setup OpenVPN and have your own network with no NAT issues whatsoever. That would be my first choice over IAX. Thanks, Steve _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
