VNC behind router
tfseak "at" futurmaster.com
Sat May 8 13:59:00 2004
In your DG834, are you using simple port forwarding or port translation? (correct me if I'm wrong) the former means an incoming port, say 1234, is redirected to the same port 1234 to the destination machine. The latter (I think it's also called port mapping) means you could redirect an incoming port to another port number, eg, port 1234 to translated to port 5678. Some routers only provide the former but not the latter.
OTOH, if you're using the former, make sure your VNC are listening to the corresponding port, ie 192.168.0.133 is using display 1 and 192.168.0.134 is using display 2.
To know the public IP address, you could go to this URL which, in the same time, could help you check if your config is correct.
From: Alan Cudmore [mailto:Alan "at" lonsdalepm.co.uk]
Sent: samedi 8 mai 2004 12:36
To: vnc-list "at" realvnc.com
Subject: VNC behind router
We have 2 workstations - IP Address 192.168.0.133 and ...134 - running RealVNC
server which require to be remotely managed. They connect to the Internet via
a Netgear DG834 DSL hub/router/firewall. This also acts as a DHCP server for
On the DG834, I have created two custom services - VNC1 port 5901 and VNC2
port 5902 - type TCP/UDP directed to IP's 192.168.0.133 and 192.168.0.134
I have also followed the FAQ ( http://www.realvnc.com/faq.html#firewall ) for
the VNC server setup.
The problem is when I try to connect remotely to 62.xxx.xxx.xxx:port from the
internet I am unable to access either pc. I get 'failed to connect to
server'. Have I missed something, or are there special considerations
regarding this type of router?
Any help would be greatly appreciated.
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