Real VNC does not work from outside

James Weatherall jnw "at" realvnc.com
Thu Nov 10 12:17:06 2005


"nospam",

It sounds like your wireless router doesn't allow connections from within
the LAN to it's own external IP address.  Your port forwarding setup is
clearly working correctly, since the test page can see your server.  You'll
find that you can connect to your server from outside your LAN using the
external IP address, but you'll need to use the internal IP address to
connect to it from within your LAN.

You probably want to contact your router vendor for updated firmware to
address this (extremely common) bug in their kit.

Cheers,

Wez @ RealVNC Ltd.

 

> -----Original Message-----
> From: vnc-list-admin "at" realvnc.com 
> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of nospam
> Sent: 07 November 2005 21:35
> To: vnc-list "at" realvnc.com
> Subject: Real VNC does not work from outside
> 
> > I have number of PCs hooked up with my NTECH wireless 
> router+ADSL modem.
> > Internal VNC works great. I configured portfording, using 
> both the preset
> > in the user and configured them manually. disabled the FW 
> for test purpose
> > and  run the VNC testpage. result :
> > The IP address requesting this web page is xxx.xxx.xxx.xxx 
> (I am not that
> > stupid :-)) 
> > Connecting to port 5900 ... succeeded. 
> > Waiting for server to send version string... 
> > Found a server supporting protocol version 3.8. 
> > however when testing by entering the IP address the 
> testpage (or use the
> > java client) gives me returns   Connection refused.
> > Questions:
> > 
> > 1. can you loop back from your own network, using 'modem' 
> IP address.
> > 2. if my isp would block this port (or my router) would the 
> testpage work?
> > 3 any other suggestions?
> > 
> > 
> > -- 
> > No virus found in this outgoing message.
> > Checked by AVG Free Edition.
> > Version: 7.1.362 / Virus Database: 267.12.8/162 - Release 
> Date: 05/11/2005
> >  
> > 
> -- 
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.362 / Virus Database: 267.12.8/162 - Release 
> Date: 05/11/2005
>