Thanks for your answer. I think you are probably right in your answer and hopefully there can be made a patch for this. The part I don't understand is that same scenario works perfect when both GK's are in public C. It does not work when the slave Gk is placed in the routers DMZ with all ports allowed and no firewall activated for this test. The slave GK does actually come up with a Location confirm but than it dies immediately because parent site's router don't know where to put the packet. I would like you to verify the sequence of events. Do you have the same scenario? EP1 on parent GK (public c)dials to EP2 on slave GK (NATed) using the prefix from the ini file. Admission Request parentGK for EP1 parentgk does Location Request to slave GK slaveGK sends Location Confirm to parentGK Admission confirm from parent Gk to EP1 H225 Call setup from EP1 to parentGK Now I have the TCP signalling connection that gets closed immediately. TCP port 1824 tries to contact EP2's Private (NATed) address A ICMP destination unreachable code 13 generated by my router (Probably the ICMP Destination Unreachable message is sent by a router in response to a packet which it cannot forward because the destination (or next hop) is unreachable or a service is unavailable. Examples of such cases include a message addressed to a host which is not there and therefore does not respond to ARP requests, and messages addressed to network prefixes for which the router has no valid route. ) Release complete from parent GK to EP1 and the party is over. In between there is a lot of TCP traffic between child gk and parent gk at port 7777 and 1786 that I have no clue for what this is.... Tjapko. ----- Original Message ----- From: "Zygmuntowicz Michal" <m.zygmuntowicz@onet.pl> To: <openh323gk-users@lists.sourceforge.net> Sent: Friday, August 22, 2003 1:04 PM Subject: Re: [Openh323gk-users] Strange test scenario > ----- Original Message ----- > From: "Tjapko Smits - iTS Consultancy" <itsc99@hotmail.com> > Sent: Friday, August 22, 2003 4:46 PM > Subject: Re: [Openh323gk-users] Strange test scenario > > > > I am testing exactly the same scenario with exactly the same test results > > while using gnugk version 2.05 on both ends. Destination unreachable when > > trying to reach the endpoint at the child Gk. I have put the NATed GK in DMZ > > of the router. I think the RTP packet information needs to be rewritten to > > achieve what we want. But...i am not a programmer..... Hope this helps.... > > This is not RTP problem, since even Setup signalling message is not sent to parent GK. > The problem is that tcp signalling connection not accepted (or closed) immediatelly. > I suspect here interference with GK NAT handling thread (the one started for listening > incoming calls). > Now this can be marked as a bug I think. > > [To Chih-Wei] Any ideas? > > --- > Michal Zygmuntowicz > > > > ------------------------------------------------------- > This SF.net email is sponsored by: VM Ware > With VMware you can run multiple operating systems on a single machine. > WITHOUT REBOOTING! Mix Linux / Windows / Novell virtual machines > at the same time. Free trial click here:http://www.vmware.com/wl/offer/358/0 > _______________________________________________ > List: Openh323gk-users@lists.sourceforge.net > Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 > Homepage: http://www.gnugk.org/ > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.512 / Virus Database: 309 - Release Date: 19/08/2003 ------------------------------------------------------- This SF.net email is sponsored by: VM Ware With VMware you can run multiple operating systems on a single machine. WITHOUT REBOOTING! Mix Linux / Windows / Novell virtual machines at the same time. Free trial click here:http://www.vmware.com/wl/offer/358/0 _______________________________________________ List: Openh323gk-users@lists.sourceforge.net Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Homepage: http://www.gnugk.org/
