Questions about ports and LANs.
Let me try to explain this the best that I can. My company that I work for installed digital camera systems with DVR capabilities. The installers set the systems up on LAN that are connected to the Internet at all times. You don't have to "dial in " to the internet, you just turn the systems on and the internet is on, no passwords needed. Each store location has a static IP addy so that the company headquarters is able to watch the stores remotely. Since the store systems are connected to the internet at all times, and they have no firewall and no virus protection, they are all infected with numerous amounts of spyware, trojans, and viruses. Alright, let me try to get to my question(s). Is there anyway to make the modem become active only when my company needs to dial in to a specific location to view the cameras? If not, is there a way to make only one port open for the company? The port that the client software uses is port 2002, it is the same for every system company wide. How can I make only that one available? What are my options? If there is any questions, I will try to answer them with the best of my computer illiterate ablities.