Dear all, It seems that Mr. Stewart also comes from Hong Kong... He can't write but he can type... Last night I investigated my IP Phone and found my adderss of router was wrong. After I make amandment, it did the control signal good and cool. I can dial to others, and they can accept the call. But the only 1 thing is, I cannot hear from another party (which is outside the Internet, also NATed but with DMZ pointed to target computer already), but they can hear me clearly! If other party from outer call my NATed IP phone, although it connects, none of the sides can hear other side... When I use ethereal to monitor the 192.168.0.1 NAT interface, it shows that all RTP are going from phone to gatekeeper, but none are going from reverse direction. Is that causing the problem? Again, thanks to you all! Yours sincerely, Jason Chan ----- Original Message ----- From: "Stewart Nelson" <sn@xxxxxxxxxxx> To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> Sent: Sunday, December 26, 2004 8:11 AM Subject: Re: Simple NAT, stupid problem??? > > > > > Thanks for all, and also sorry for my poor written english. > > Don't feel bad, your English is fine. 我唔識寫中文 :( > > > Let me explain it better: > > I have 1 LAN (192.168.0.0/24) and 1 Internet Connection(61.93.xx.xx). A > > multi-homed computer is used to provide proxy and Internet Connection > > Sharing services, which is a Windows XP Professionial Machine. > > I use simple ethernet to connect to ISP (that is no PPPoE, or any other > > special method to login). > > I suspect that some combination of Telephony service, ICS, and ICF / > Windows Firewall is causing your trouble. If you can boot up a Linux > partition, I think you will find that gnugk runs fine. If it is not practical > for you to use Linux, BSD, etc. for your gateway, try to determine > what is not working in Windows: > > You can easily test with the firewall disabled. Before doing so, of course, > make sure that you have all security updates installed, and disable > file and print sharing, and any other services that you don't want to > be accessed from outside. You can use "netstat -o -a" to see > what ports are open and what processes are listening on them. > > If it works with the firewall off, it may just be the audio packets being > blocked. Try setting RTPPortRange to a few ports and opening those > UDP ports in the firewall. > > If not, try a test with ICS and Telephony also disabled. When you turn > off ICS, the settings for your LAN interface may be reset. If so, manually > configure it for a 192.168.0.1 static IP. Then, after a reboot, Telephony > should not be running. If it is, stop it manually. Of course, in this test > setup, the other hosts on your LAN won't be able to access the Internet, > but your IP phone and your friend's endpoint should be able to register > with gnugk, and I believe that calls should be possible. If not, try adding > NetworkInterfaces=192.168.0.1/24,61.93.xx.xx/xx. If it still doesn't > work, you should run Ethereal on both interfaces to see why the proxy > isn't doing its job. > > If gnugk runs ok when ICS, etc. is disabled, you have several options: > 1. Use an inexpensive hardware router for NAT. Choose one that allows > you to forward required port ranges to gnugk. > 2. Use a third-party NAT software, instead of ICS. > 3. If your other hosts only need to access the Internet for Web and email > (and VoIP), you could use an application proxy instead of NAT. > 4. Find out precisely what fails when ICS is enabled. There may be a > workaround in the configuration, or with a patch to the source. > > > Once I downloaded the the GNUGK, I modified a little bit in proxy.ini(just > > change the network address of my NATed subnet)in the folder "etc". And I > > started the gnugk, also set my netmeeting and ip phone to register with my > > Gatekeeper which is located on 192.168.0.1. Then I ask somebody connected > > from the internet, and ask them to register with 61.93.xx.xx. > > > > I have tried for inbound and outbound call - with E.164 number. Firstly I > > use my IP Phone to dial to other parties on internet (outside), the user did > > press "Accept" in Netmeeting, but my phone continue to ring until suddenly > > disconnected, with status port (7000) report to telnet: NormalDrop > > (normal!?) > > I don't have a Planet IP phone, but do use some of their gateways. > Those have a bug (feature?) that causes the ringback to continue to > play, until audio packets are received from the destination, when fast > start is not used. > > > For inbound call, I pick up the phone, and it seems it is connected. But > > none of the parties can hear another. > > Actually some months before I have tried it (older version of GNUGK) in > > another multi-home computer, but in Linux Environment. It worked great! I > > even copied the working ini file to my winXP, but with no luck at all. > > But this time, I have tried GNUGK in 2 different computer - 1 is WinXP (my > > home), another one is in my workplace, which I have tried two different > > versions of gnugk - 2.2.0 and also 2.0.9, but same situation occurs in my > > home Windows XP computer. > > > > Thanks for your reply and advise. > > > > Yours sincerely, > > Jason Chan > > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://productguide.itmanagersjournal.com/ > > _______________________________________________________ > > List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx > Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 > Homepage: http://www.gnugk.org/ ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id?9 Homepage: http://www.gnugk.org/
