The Router at your subscriber’s location may have either a static or dynamic IP address. A static IP is the easiest to work with because as its name implies the address does not change. A dynamic address will change from time to time. The easiest way to deal with this is by setting up the router or the Internet device to use a dynamic DNS service. There are many free services and several equipment manufactures run their own service for their equipment.
Now we know what we need to set up a device on a network. A typical example might be a DVR on the LAN where users want remote access. You will need to know what port(s) the device uses. Your technician will need to enter into the DVR the Static IP, Network Mask, Gateway and DNS addresses given to you by the network administrator. You will provide the network administration the port(s) and data types for each used by the DVR. Once these entries are made in the routing table the DVR will be accessible from outside by using the public IP address in the browser or software client provided by the manufacturer.
The secret to getting the cooperation from network administrators is to know what information they need. Providing it in an organized manner and with the settings your equipment needs to function is just how you get on the network and stay there.
Mark S. Fischer is the vice president and chief technology officer at NationWide Digital Monitoring Co., Freeport, N.Y.