Hi Arcadiazone,
If you need to provide VPN connections to you clients, we can refer to the following documents to verify the configurations:
Checklist: Installing and Configuring an RRAS VPN Server
http://technet.microsoft.com/en-us/library/dd469733(v=ws.10).aspx
Configure the Way RRAS Assigns IP Addresses to VPN Clients
http://technet.microsoft.com/en-us/library/dd469667.aspx
VPN server deployment: IP Addressing, Routing/NAT, Single vs two NIC
http://blogs.technet.com/b/rrasblog/archive/2006/09/20/vpn-server-deployment-ip-addressing-routing-nat-single-vs-two-nic.aspx
Step-by-Step Guide for Setting Up VPN-based Remote Access in a Test Lab
http://technet.microsoft.com/en-us/library/cc757206(v=ws.10).aspx
In addition, if there is any error or issue, please let us know detailed error information.
Hope this helps.
Jeremy Wu
TechNet Community Support
