I have been battleling this problem for two weeks. I have consulted sevral articles, both on EE and off. We just installed a brand new Cisco 800 Series router in our small business. After laboring intensly, I was able to get the internet up with the help of a friend who knew just enough about configuring Cisco routers to get it going. But... for the life of me, I cannot get NAT, PAT Port Forwarding, whatever you want to call it, to work. We have 5 IP cameras and 2 Servers we need to be able to access from outside. The 2 Servers need to be able to remote desktop, and the 5 cameras have there own software that if (NAT, PAT, PF) works, can be accessed from outside.
The inside IP's for the devices are as follows (if it helps)
Cam 1: 192.168.1.201 Port 81
Cam 2: 192.168.1.202 Port 82
Cam 3: 192.168.1.203 Port 83
Cam 4: 192.168.1.204 Port 84
Cam 5: 192.168.1.205 Port 85
Server 1: 192.168.1.1
Server 2: 192.168.1.199
There is firewall set up on the router, but I have (to the best of my knowledge) created rules to allow these incoming transmissions. I have also created the PAT in the NAT section (again to the best of my knowledge).
Keep in mind that everything worked on the old (piece of crap) router the ISP gave us.