John, When you say you have SIP clients working behind NAT is this with ports mapped from a public ip to the phone? I.e. can many phones sit behind 1 public ip and recieve incomming calls, and make outgoing calls?
- Justin On Tue, 1 Jul 2003, John Todd wrote: > Sorry, I still don't know what you're talking about. > > Clients behind NAT can talk to Asterisk without difficulty, and I use > that functionality all the time. If that is not the case for you, > I'm afraid you'll have to be much more specific about your problems > for anyone to help you. Despite many claims that SIP can't run > behind a NAT without special configuration, I have proof that they're > wrong. > > JT > > > >Hello, NAT/Firewall is truely a problem in the ITSP arena. > >There is one solution I know of that works well as an integrated > >DHCP/NAT/Firewall into a SIP aware firewall. Check out > ><http://www.intertex.se>www.intertex.se and look at the IXX66 > >products. They even have a device that integrates DSL/NAT/Firewall. > >Or, one can purchase a SIP device that supports STUN(Grandstream and > >SNOM are the only vendors I know of that do) and install a STUN > >server. If anyone is interested I have a STUN server running to > >test with. Hope this helped.... > > > >Mike > > > > > > > > > >Michael Kane > >To-Talk Communications LLC. > >37 Sandusky Dr. > >Wareham, Ma. 02571 > >508-295-2826 > >----- Original Message ----- > >From: "John Todd" <<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]> > >To: <<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]> > >Sent: Tuesday, July 01, 2003 3:47 PM > >Subject: Re: [Asterisk-Users] A solution for SIP and NAT > > > > > I'm uncertain why you're not able to get SIP working for your user > >> agents (SIP clients.) With Cisco equipment, as an example, it works > >> quite well and almost every 79xx or ATA-186 I have is behind a NAT, > >> and this configuration is duplicated across a dozen or more systems > >> now running behind almost every conceivable NAT/PAT situation* > >> > >> Known working config: > >> > >> UA -> (NAT) -> Internet -> Asterisk > >> > >> Can you be more specific about your problems with SIP? Perhaps you > >> have done so in the past, but re-state and maybe someone can see what > >> the problem is. > >> > >> JT > >> > >> > >> *Note: the Cisco PIX, while supposedly SIP-friendly, has been the one > >> box that has not worked with NAT/PAT SIP sessions. I have not been > >> the admin on that system, but a fairly clueful Cisco wrangler has > >> been unable to make it work for originating calls in both directions > >> - only one-way origination works.) > >> > >> > >> >Hi all. > >> > > >> >I have come to the conclusion that there just isn't anything out there > >> >for allowing SIP and NAT to work together nicely. This is rather amazing > >> >considering that as far back as March 2000 there are documents > >> >describing how to do it. > >> > > >> >So I've started a really simple SIP and RTP proxy project, SaRP, on > >> >sourceforge.net. Yesterday we uploaded 0.2 of the perl based release. > >> >This is the first general release and should work for most people. We > >> >are using it quite successfully for standard calls between all sorts of > >> >NATed clients. All you need to do is forward UDP/5060 from your > >> >firewall/router to the box running SaRP if you want incoming calls to > >> >work and also allow UDP traffic from the ports listed in the config file > >> >out. > >> > > >> >The project can be found at > >><http://sarp.sourceforge.net/>http://sarp.sourceforge.net/ > >> > > >> >I would be very interested in any feedback you may have. > > > > > > > >Regards > > > > > > > >Andrew Radke. > > > >_______________________________________________ > > > >Asterisk-Users mailing list > > > >[EMAIL PROTECTED] > > > >http://lists.digium.com/mailman/listinfo/asterisk-users > >> > >> _______________________________________________ > >> Asterisk-Users mailing list > >> <mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED] > >> > >><http://lists.digium.com/mailman/listinfo/asterisk-users>http://lists.digium.com/mailman/listinfo/asterisk-users > >> > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
