you will have to use iptables to forward/open port 1863 to the ip address of the winXP box...
take a
look at this and see if that helps you at all...
below are some examples also...
Code:
iptables -A INPUT -p tcp --syn --dport 1863 -j ACCEPT
or you can use :
Code:
iptables -A INPUT -s 207.46.104.20/32 -p tcp --syn --dport 1863 -j ACCEPT
that for a specific host...of course you will change that example ip with the XP ip..
also i would like to note that for file transfer you are opening another can of worms...you will have to do something similiar as above but open a different range of ports...i think they start at port 6890 and above, but don't quote me on that..
