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Zou Min wrote: > Hi, > > I am a new comer to this list. > > I have setup a private LAN with a linux ip masq gateway a linux-2.2.19 box > using ipchains. > > everything is ok, except that I am having trouble to use a voice conversation > software in a client machine belonging to the private LAN, located behind the > NAT router. > > The problem is that when I call a outside public host using the software, the > connection can be established, but only outgoing voice packets are transferred, that >is, I can't receive any incoming voice packets. > > What is the problem? and how can I tackle it? > > Can I just add some port forwarding rules in the /etc/init.d/rc.firewall ? > If so, how can I find which port I should specify? (as the voice conversation > software is a proprietary software) And, the software is not a very popular > one, so I can't find it in IP Masquerade application collection webpage. > > Do I need to write a module to support incoming voice packets transfer? > If so, any good reference or howto I can follow to start the development? > > Thanks for any suggestions!! > > -- > regards, > > ZM it depends entirely on which telephone software you are talking about. there are many different protocols. the first thing is to check the software vendor's website to see what protocols their software is using. there should be a page on what needs to be done to allow the application to work through a firewall. most such sites have this information but it's not always sufficient. you could look at http://fwup.org/firewall.policy to see brief protocol information on various telephony services. but i can't say whether fwup handles all of them (i'm sure there are some that don't work). raf _______________________________________________ Masq maillist - [EMAIL PROTECTED] Admin requests can be handled at http://www.indyramp.com/masq-list/ -- THIS INCLUDES UNSUBSCRIBING! or email to [EMAIL PROTECTED] PLEASE read the HOWTO and search the archives before posting. You can start your search at http://www.indyramp.com/masq/ Please keep general linux/unix/pc/internet questions off the list.
