On my old Netgear FWAG114 router (great unit, just needed QoS to be perfect) I had the option of authorizing a specific IP range to access an incoming port on my router. I would like to do this on my WRT54GL running Tomato, but don't see the option in the Port Forwarding menu. Is this something I could do with a startup script? I am thinking it would just be some custom iptables commands, but am unsure. For instance, let's say I want to enable ssh access to a server inside my network by forwarding port 1234 to port 22 on internal host 192.168.1.5, but I only want external ip address 18.104.22.168 to be able to be forwarded inside. Any and all help will be appreciated.