Access Internal with VPN connect client to site

To day, I 'll create a connect client to site. This very simple:
We need DC, ISA server, clientvpn  and to set up IP address as shown:

Next step:create a new user: vpnclient and allow access VPN connect (Dial-in or VPN)
Create a Group VPN and add vpnclient in it;

Configure Firewall Policy to create new rule allow access External  to Internal
Start ISA manager to verify VPN properties and add Group VPN (on DC) to VPN clients.

Configure Address Assignment {100.100.100.0 - 100.100.100.255) and enable VPN clients access;
 Ultimately, on vpnclient create a connect VPN to VPN Server (ISA Server), at here IP reference = 192.168.1.201, type user vpn is clientvpn / password and connect successful to Internal resource on Domain vispro