I am about to start working on a VPN project for my company that will require connectivity to remote sites for access to mapped drives, Exchange and web to the Corporate site. We have a 515E at the Corp and I am planning on putting 501s at each location. What is required as far as IP addresses to make this work? I will get a static IP and DSL circuit for each site to get them up and talking to the web. As far as VPN goes, I'm new to it so bare with me. Do I need additonal IPs, one for Corp site and one for remote site for the tunnel?? I know the PDM will probably make the VPN setup easy enough since it has a wizard to guide me through.