I have investigated further and have found a scenario where one change makes the problem appear. The test setup is as follows:-
VNC viewer/PuTTY SSH tunnel | Linux firewall, ADSL router | <internet> | ADSL router - NAT 192.168.0.x | Linux Firewall, terminating SSH session external IP 192.168.0.254 internal IP 10.0.0.1 (separate physical ethernet card, same LAN segment) NAT -> 10.0.0.x | VNC server machine IP 192.168.0.13 IP 10.0.0.23 (I have 2 separate cards in the machine, though the result is the same if I change the IP and only use 1) Result: If I port forward to the 192.168.0.13 IP address the VNC connection is stable. If I port forward to the 10.0.0.23 IP address, the VNC session hangs as before The only difference between these two sessions is that the Linux box terminating the SSH connection is forwarding to a 'public' address (from it's point of view) in one case and to a private address in the other. I suppose the next steps would be to try segmenting the LAN properly and swapping the ethernet cards on the SSH terminating linux server. I'll report back once I have done that. Any other suggestions on what could be going on here? Thanks mark. On 6/10/05, James Weatherall <[EMAIL PROTECTED]> wrote: > Mark, > > The "bad" log indicates that VNC Viewer is seeing the connection close and > is then exiting. The only obvious difference between the two logs is that > the second session involves a change to the clipboard, which will result in > data being transmitted to the server if the clipboard contents are text. If > the contents were a large amount of text then this could conceivably cause > the viewer to appear to hang while it was being transferred to the server. > > Regards, > > Wez @ RealVNC Ltd. > > > > -----Original Message----- > > From: Mark [mailto:[EMAIL PROTECTED] > > Sent: 10 June 2005 17:21 > > To: James Weatherall > > Cc: [email protected]; [EMAIL PROTECTED]; > > [EMAIL PROTECTED] > > Subject: Re: Screen freezing in VNC4.1.1 over SSH > > > > Here are the full logs of a good and a bad session. To make things as > > close as possible, I minimised and unminimised it after a few seconds > > - ie before anything froze. > > > > FYI, on the bad session I minimised vncviewer at 17:09:52 and > > unminimised it at 17:15:11. > > > > Thanks > > > > mark. _______________________________________________ VNC-List mailing list [email protected] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
