from http://www.virtualbox.org/manual/ch06.html#natforward VBoxManage modifyvm "VMname" --natpf1 "guestssh,tcp,,2222,,22" VBoxManage modifyvm "VMname" --natpf1 delete "guestssh" VBoxManage list vms (list vm guest names) VBoxManage showvminfo <VMname> --details (shows nat rule and other things)