SSH-VNC works on LAN but not through router/WAN

[William Hooper]

> -----Original Message-----
> From: vnc-list-admin@realvnc.com 
> [mailto:vnc-list-admin@realvnc.com] On Behalf Of Jeffrey J. Kosowsky
> 
> I am running tight-vnc 1.2.7 with the server on my RH8.0/Linux 2.4.20
> Linux machine and the client on my WIn2k laptop which runs cygwin ssh.
> 
> I can tunnel vnc through ssh with local network addressing on the
> 192.168.1 subnet,
> 
> e.g., typing: 
>         ssh 192.168.1.100 -l username -C -L 5902:192.168.1.100:5901
> sets up a SSH connection and then I can open a vnc connection from the
> win2k client using localhost:2 as the vnc server name
> 
> However, if I type the wan IP address 151.199.60.120 in place of
> the local area 192.168.1 subnet address I get a ssh connection but can
> no longer connect with the vnc win2k connect using the same
> 'localhost:2' server name.
[snip]

As discussed YESTERDAY for the forwarding host you need to use the internal
IP.  If you use the external IP then SSH tries to talk to your firewall.

ssh 151.199.60.120 -l username -C -L 5902:192.168.1.100:5901

-- 
William Hooper