> UPNP means Universal Plug'n'Play. I guess WinXP looks to > automagically reconfigure the NAT rules via upnp. > > No idea about the netfilter stuff myself I'm afraid. > > > From: Marc Rechté [mailto:mrechte@xxxxxxxxxxxxxxxx] > > > > To enable remote assistance from Internet of a WinXP PC on > a LAN using > > NAT one must have a UP&P NAT compatible router. > > > > Can Netfilter act as such a router, and if so do you have > an idea of > > the chain to apply ? Netfilter doesn't do UPnP. Maybe you can use this information : http://support.microsoft.com/default.aspx?scid=kb;en-us;q301529 http://www.pccitizen.com/remotecontrol.htm#C.%20XP%20Remote%20Assistance/Rem ote%20Control It says something about "opening up port 3389" but I don't know if it's tcp, udp or both... I think that in your case you have to forward the packets coming in from this port to your WinXP box. Gr, Rob
