not listening on added interface

[James Weatherall]

Peyton,

VNC Server doesn't bind to particular IP addresses, so it will accept
connections from any IP address that the host computer is using, provided
that the TCP stack is working correctly.

What is the error you receive when you're unable to connect?  This may help
in diagnosing the problem with your network setup.

Cheers,

Wez @ RealVNC Ltd.


> -----Original Message-----
> From: vnc-list-admin "at" realvnc.com 
> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Peyton Sherwood
> Sent: 04 January 2006 22:01
> To: vnc-list "at" realvnc.com
> Subject: not listening on added interface
> 
> Hello,
> 
> This is a somewhat technical question.
> 
> We've been using VNC for some time now at my office, and we think
> we've recently discovered a bug.  I'd like to know if anyone else has
> noticed this behavior, whether anyone can reproduce it, and whether
> anyone knows if there's a fix.
> 
> When a new network interface is configured in Windows after the VNC
> server has already been started, it appears the VNC server will not
> listen for connections on that interface.
> 
> Example: let's say you're plugged in via ethernet to your local area
> network and your IP is 192.168.0.1 on that interface.  You start VNC
> server and you're able to connect to it from another machine using
> that IP address.  Now try associating with an access point via your
> wireless network interface (alternately, plug in another ethernet
> connection if that's possible).  You get another IP address via DHCP
> -- let's say 192.168.0.2.  Trying to connect to the VNC server on that
> interface's IP address does not work.  If you disconnect the first
> interface (unplug the ethernet cord) and Windows realizes it's gone,
> discards the IP, etc, try connecting to the second interface again
> (192.168.0.2) -- it works.
> 
> Again, has anyone noticed this behavior or can you reproduce it?
> 
> Thanks in advance!
> -Peyton
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