Cisco Routers :: RV042 - Limiting HTTP Access By IP Address?

I am trying to limit HTTP access to my server on the local network to a specific IP address.  I create an Access Rule in the firewall section, however that doesn't work.  The only way it works is if I add the internal IP address of the server to the Forwarding section where I create a new HTTP forwarding rule.However, that is not good because that allows ALL HTTP traffic to that server instead of just by the single IP address.