My home office network is behind a single NAT firewall (DSL router). I set up port-fowarding on the router to forward the a few ports <http://wiki.ekiga.org/index.php/Internet_ports_used_by_Ekiga> needed by ekiga, and tell my colleague to call me using public IP address sip:123.116.115.109
When I am in home office receiving incoming video phone call from colleague, my video is not transmitted to my colleague. My colleague is behind a very strict NAT (in fact, two layers of ordinary NAT firewall), seeing only moving ekiga logo, "remote video" option in his "view" menu is disabled during the phone call. With his complicated NAT firewall, he only wish to call me and see me on the video, not thinking about receiving a call. Question: is it necessary that my colleague should be able to receive incoming tcp/udp connection in order to see my video? With my limited knowledge of network, by actually dialed me successfully, he already established a connection to my PC, so if my video is transferred to him with the same connection, there should be nothing to worry about firewall. But, if I should initialize a separate connection back to my colleague in order to deliver video to him, like old time non-passive-mode FTP protocol, then we must have hit a problem with the firewall. FYI: Within my home office video phoning from my notebook computer to my desktop PC is okay, indicating the video camera is compatible with Linux and ekiga can work in case there is no firewall. _______________________________________________ ekiga-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/ekiga-list
