Access to port 80 over ipsec

[quantum900]

Ok, I have a site to site VPN tunnel using ipsec. One side of the tunnel is pfsense, and the other is a smoothwall router. I can access the remote network with the exception of port 80. I can RDP to a server, but not access a web page hosted by it.

This system worked flawlessly when both sides were smoothwall. I can not figure out why port 80 is the only problem.