My company installed a Cisco PIX 501 on one of our client to give remote support using a VPN and we have problems to configure the VPN. I'm a beginner with VPN, but I have good knowledge about network.
Actually, the setup we did and the VPN connection works, but when we connect to the VPN we always obtains a subnet mask 255.255.255.255 and we are not able to communicate with others devices. I tried to find the problem, but I found nothing.
I give you my configuration and I hope somebody will find a solution.
The PIX is not directly plug on the Internet, it is behind the FORTINET Firewall of the company, but we redirect the good port to access to the PIX from Internet. The outside network is 192.168.3.0 (FORTINET network) and the inside network is 192.168.1.0. The pool for the VPN remote client is on the network 192.168.100.0. We want to use the protocol PPTP. The Internet gateway is 192.168.3.88 and the DNS servers are 192.168.3.1 and 192.168.3.2. We used static NAT to give Internet acces to some computers in the inside network.