Hi, Stewart. You wrote: > Do you have multiple phones behind the same NAT? > If so, it won't work unless the phones allow you > to specify unique ports for call signaling and RTP. > Even then, it's an administrative hassle if you have > more than two or three. Yes my phones allow to specify unique ports for signalling and RTP and the nmuber of phones is not very lurge. I understand all the admin issues, but this is the only solution in my case. > For a single phone on a private LAN: > Does it register (RCF message on GK console)? If not, > check that the phone is configured with the IP address > of the GK (discovery can't work across the NAT). > If you do see an RCF, does it show the private address > of the phone? If not, then your NAT is trying to be > "smart" about H.323 and if it doesn't do it right you > are in trouble. If you do see the private address > in the RCF, and you have SupportNATedEndpoints=1 > and ProxyForNAT=1, then outgoing calls should work > without doing anything to the NAT, except that you > may not hear any audio until the called party answers. > To fix that, and enable incoming calls, you need to > forward TCP 1720 and whatever RTP ports the phone > uses. If you can't use Fast Start and/or H.245 > tunneling, you also need to forward TCP port(s) for H.245. > Once you have done that and it all works, you may be > able to improve performance by turning off ProxyForNAT. > The above all assumes that the NAT is not blocking any > outgoing UDP or TCP. Thanks a lot for your suggestions, I'll try them. My main problem is that the phone doesn't even register with the gatekeeper, I see only GCF and ARJ on the gatekeeper with phone's routed (already NATed) address. This is not an authentication issue because, without NAT the same phone registers easily, and everything works. So, I think that the phone never recieves a reply from the gatekeeper and evidently there's something wrong with my NAT. I'll try to place the phone alone behind the NAT box and to map all pors to it, just to see if it will get any answer from the gatekeeper. As for the SupportNATedEndpoints=1 and ProxyForNAT=1 commands, do I need them in the config? I'm not sure but I think I don't have such options, I'm still using 2.0.8. I have to check this out. Did anyone at all manage to get an ip phone behind NAT working with gnugk in proxy mode? -- Regards, Cezar mailto:cezar@xxxxxxx ------------------------------------------------------- This SF.Net email is sponsored by Oracle Space Sweepstakes Want to be the first software developer in space? Enter now for the Oracle Space Sweepstakes! http://ads.osdn.com/?ad_id=7393&alloc_id=16281&op=click _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/
