We are unable to get VPN passthrough to our SBS 2003 server. Here is the design of our current network.
Cable Modem - ASA5510 (outside)
ASA5510 (inside) - DLINK wireless router (WAN) port
DLINK - Catalyst 2960E switch
SBS 2003 - switch
I have addeed access-list outside_in extended permit tcp any host (asa's IP) eq PORT to all our open ports (i.e., RWW, RDP, etc.).
I also added static (inside,outside) tcp interface PORT ASA's IP PORT netmask 255.255.255.255.
The DLINK is set with a static IP from the ASA5510. DHCP is turned on in the DLINK on a separate network segment (i.e., 192.168.1.1, 255.255.255.0). Both the staic IP and the DHCP are on the same subnet.
We can RDP into the server with no problems.
DHCP and DNS are turned off on the SBS 2003 server.
I don't know why the VPN or RWW is not working.