We have installed Firewall-1 NG AI + VPN. Our employees access our corporate network by SecuRemote. One of them has home PC (Windows XP) connected to shared network (ethernet). He accesses Internet by establishing PPTP tunnel to gateway on this shared network (one-man ISP). The SecuRemote does not work. He tried to bind it either to physical or virtual interface. When it is binded to physical interface, he is able to authenticate, but that is all. We have configured UDP encapsulation and IKE over tcp. We have no conflict of internal and his network address space.
Hi Thanks for reply, but maybe i explained the problem in wrong way. There is no PPTP communication through our VPN gateway. The PPTP tunnel is only used by home PC to get acccess to Internet. I will try to draw : PC|-pptp->|PPTP gw|-Internet->|VPN gw|-corporate net