Establishing an IPSec site-to-site tunnel between an ISA 2004 Firewall and a D-Link DI-804HV IPSec VPN Router

Well, I worked this weekend with a D-Link DI-804HV VPN router to connect branch offices with an ISA firewall thru IPSec site-to-site tunnels. This D-Link router is a very cheap equipment to put on your remote locations, and very easy to configure as well. It can also function as a poor man’s firewall and it also allows inbound PPTP and L2TP/IPSec remote access VPN connections if you want to access your remote office from the comfort of your home! Check out this article for the step by steps on joining the ISA firewall to the DLink VPN router for a site to site VPN.