在virtual box架設server以及使用P2P...

我是看...
http://log-keep.blogspot.com/2007/09/virtualbox-nat-port-forwarding.html
詳細的內容請去上面網址看就好了...
簡單的說就跟ip分享器一樣...在virtualbox開port...

打開終端機...輸入...
VBoxManage setextradata "windows XP" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/share/UDP" 0
VBoxManage setextradata "windows XP" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/share/GuestPort" 29729
VBoxManage setextradata "windows XP" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/share/HostPort" 29729

粗體的地方是你虛擬機器的名稱...
斜體的地方是你要開的port...

可以用HFS之類的測試...
測試內部網路及網際網路port是否有開到...