I have a number of remote sites that VPN into a Windows 2003 SBS server with ISA and Exchange installed. I have had intermittent issues with VPN's and have heard that having Point to Point VPN's set up are more reliable. I got a Linksys RV082 VPN router for our main office where the SBS server is and a Linksys RV042 VPN router for one of our sites to test this out. Are there any issues I will run into with having ISA installed on the SBS server and are there any issues I will run into for people who want to just VPN in the old way? I guess, in general, what issues do I need to resolve to have a setup where all my remote sites (peer to peer networks, broadband access, dynamic IP's) would now have VPN routers and then still have people be able to VPN in from home or some other location( where there would not be any VPN routers) into our office that now would have a VPN router (broadband access, static IP)? I figure the SBS setup with ISA might need some additional configuration.