My client wants to establish a VPN connection so that he can access his office Win XP machine from his home Win XP machine. The problem is that his office is behind two routers - his own on a 192.168.15.x network and the main router for the office complex on a 192.168.1.x network.
I have spoken to the engineers who manage the office complex router and they say it can be done as long as we use a non-standard port. However I can't see an option in Win XP to use a non-standard port for PPTP, either for the VPN host or the VPN client.
Any thoughts on this, please?