D-Link DCS-1000W Setting-Up Manual page 5

Opening Outside Ports will allow users to view the Camera
Images from inside or outside the Wireless Network. The Web
Server Port is a proprietary port used in the IP address from a
remote location. (Ex. http://10.80.1.250:83)
The ports that are opened must be unique for each camera,
to successfully view the images from an outside network.
Assigning and Opening outside ports.
5