If you're being fragged, a different version won't help. Do a traceroute to your system, then try doing the sizing ping against the next-to-last hop. That should give you a decent checkpoint.
----- Original Message ----- From: "Patrick Linley" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, 2002-06-27 08:27 Subject: RE: can connect only from some pc's > Unfortunately, I am attempting to get this working through a very > tightly secured state firewall... they have ping/icmp/etc. blocked... I > got them to open port 80 on a static IP for me so that I could get in at > all. > > But it is the latest version of tightvnc for windows running on 2000pro. > > You think i should try the old vnc? > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On > Behalf Of Alex K. Angelopoulos > Sent: Wednesday, June 26, 2002 9:04 PM > To: [EMAIL PROTECTED] > Subject: Re: can connect only from some pc's > > Patrick, > What version of the viewer are you using? > Also - a less commonly known problem - it is possible that you are > experiencing > problems with a "black hole" router between the twp systems. I'm not > sure how > VNC responds to excess packet fragmentation, but it may be worth > checking. > > One way to do this is (if the remote system doesn't drop ping requests) > is to > attempt to ping it with large packets and the non-fragment flag set. On > Windows > systems, here's how you would do that. If the remote system is at IP > 123.123.123.123, then try: > > ping -l <packet-size> -f 123.123.123.123 > > and vary the packet size from about 200 up to 1468 or so. If you start > losing > contact below 1468, chances are there is a fragmentation issue between > you and > the server. > > ----- Original Message ----- > From: "Patrick Linley" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, 2002-06-26 18:28 > Subject: can connect only from some pc's > > > > I finally got winvnc to work on port 80 through our firewall - I can > > connect to it from some locations, but not from another location. As > > far as I know there are no 'outgoing' ports locked out on the 2nd > > network, as I can connect to other machines on ports other than 80. > > > > If I define a port other than the correct one (-5820), it gives me an > > error message immediately stating that it failed to connect to server, > > but when I attempt to connect to the correct port, it does nothing. > the > > process just hangs, which tells me that it sees the server, etc. I am > > just not getting the authentication dialog. > > > > Thanks, > > > > ****************************************************************** > > Patrick A. Linley > > _______________________________________________ > > VNC-List mailing list > > [EMAIL PROTECTED] > > http://www.realvnc.com/mailman/listinfo/vnc-list > _______________________________________________ > VNC-List mailing list > [EMAIL PROTECTED] > http://www.realvnc.com/mailman/listinfo/vnc-list > _______________________________________________ > VNC-List mailing list > [EMAIL PROTECTED] > http://www.realvnc.com/mailman/listinfo/vnc-list _______________________________________________ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
