Dear Michal, I'm attaching a copy of the tcpdump. The 2.2.5 version is disconnecting the telnet session whenever we do a "!" command after dumping some info. This capture was taken when there was more than 300 calls on the GnuGK. This is a dump from the system running the telnet client (windows 2000 sp4). The problem usually doesn't happen when there are fewer calls, say around 50 or less. I would really appreciate if you could take a look into this. Regards HASSAAN ----- Original Message ----- From: "Zygmuntowicz Michal" <m.zygmuntowicz@xxxxxxx> To: "GNU Gatekeeper Users" <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> Sent: Wednesday, January 24, 2007 22:50 Subject: Re: Telnet Problems > Try with wireshark (formerly ethereal) and unix: > tcpdump -s 0 -w capture.dat host x.x.x.x > > ----- Original Message ----- > From: "Nyamul Hassaan" <mnhassan@xxxxxxx> > To: "GNU Gatekeeper Users" <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> > Sent: Wednesday, January 24, 2007 5:48 PM > Subject: Re: Telnet Problems > > > > Dear Michal, > > > > There doesn't seem to be any timeout, as the telnet session just ends > > abruptly. Both in CentOS 4.4 and Windows 2000 whenever I'm doing it with > > a > > latency of 350ms. But, when I'm trying from the same machine (Windows > > Server 2003) or from a machine with less than 1 ms latency (CentOS 4.4), > > it > > works just fine. > > > > It is probably a buffer overrun. I can check it from here, but could you > > advise how to take a tcp dump? I've used Network Monitor on Windows 2000 > > before. But, never did it on linux. Can you suggest me some other > > alternative? > > > > Regards > > HASSAAN > > > > > > > > ----- Original Message ----- > > From: "Zygmuntowicz Michal" <m.zygmuntowicz@xxxxxxx> > > To: "GNU Gatekeeper Users" <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> > > Sent: Wednesday, January 24, 2007 18:16 > > Subject: Re: Telnet Problems > > > > > >> I think you could capture the tcp stream to see its flow. > >> I guess the tcp stack (or maybe some gnugk timeout) > >> closes the socket due to lack of buffers. > >> > >> ----- Original Message ----- > >> From: "Nyamul Hassaan" <mnhassan@xxxxxxx> > >> To: "GNU Gatekeeper Users" <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> > >> Sent: Wednesday, January 24, 2007 1:05 PM > >> Subject: Re: Telnet Problems > >> > >> > >> > Dear Jan, > >> > > >> > I've tested the telnet problem on 2.2.5 today. The problem seems to be > >> > NOT > >> > present in the following cases: > >> > > >> > 1. When I ran the telnet client on the remote Win2k3 system that also > >> > hosted the GnuGK. > >> > 2. When I ran the telnet client on a remote CentOS 4.4 server which is > >> > also > >> > hosted in the same data center as the GnuGK system (latency less than > >> > 1ms). > >> > > >> > However, whenever I'm running the ! command from a system that has a > >> > latency > >> > of around 350ms, there is a problem. I've test on Windows 2000 and > > CentOS > >> > 4.4. Same problem on both. The client disconnects after getting some > >> > data. > >> > > >> > Could you tell me why this is happening? > >> > > >> > Regards > >> > HASSAAN > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________________ > > Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx > Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 > Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users > Homepage: http://www.gnugk.org/ >
Attachment:
telnet_2.2.5.cap
Description: Binary data
------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/
