Special socket program like anything started with "Microsoft" may need a module e.g H323 for the kernel in order to to work. I'm not sure why H.323 module didn't work (need debug) but 2.4 iptable look a lot cleaner and less security issue (2.2-20 is the current stable kernel for ip masq ) I don't use microsoft product dont' know what to suggest you to use. But port forwarding should be the same as your masquerading script instead of just putting ip you put ip:port number
http://www.tldp.org/HOWTO/IP-Masquerade-HOWTO/kernel-2.2.x-requirements.html Good Luck Alex Zou Min wrote: >HI, > >[EMAIL PROTECTED] [EMAIL PROTECTED]@個IP上網的. > >目前主要問題是不能在內部網絡裡使用語音聊天軟件與外部網絡的機器聊天. >我試過 >MSN Messenger 4.6, p2p voice chat. >Microsoft Netmeeting 3.01 >V2 Communicator (from www.v2tech.com) >都有問題. 前兩個都是不能聯機, 而V2 Communicator可以互相聯上, 但是只能說話 >給對方, 但是聽不見對方的語音. > >至于Netmeeting, 我試過這個意大利人寫的 H.323 module. >(http://www.coritel.it/coritel/ip/sofia/nat/nat2/nat2.htm) >但是好像還是不行. > >我們的IP Masq Server用的是Linux kernel-2.2.19, with ipchains-1.3.10-15. >("rc.firewall"基本上是照搬Linux IP Masquerade HOWTO上的) > >[EMAIL PROTECTED], [EMAIL PROTECTED] > >如果我要自己設定port forwarding rules的話, 應該怎樣設? [EMAIL PROTECTED], >比如, V2 Communicator, 我應該怎樣去找哪些port我需要forward? > >也許, post在這裡有點off-topic, 但是我找了很多地方, 都沒有好的解決辦法. >多謝哪位網絡高手相助! > > > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]

