The incoming ports that need to be forwarded for a Defender 21101 DVR are:
Defender 21101 - PC
- TCP: 80, 5000, 9000, 18004
- UDP: 80, 5000, 9000, 18004
Forward Ports for a Defender 21101 DVR
You may need to forward ports in your router when you use a Defender 21101 DVR. A port forward allows incoming connection requests from the internet to go straight to a Defender 21101 DVR.
Routers are not designed to allow incoming network requests. A port forward can overcome this limitation.
Before You Forward a Port
You need to know the following things before you can forward a port:
- Your router's internal IP address.
- The IP address of your DVR.
- The list of the TCP and UDP ports that you need to forward.
Locate Your Router's IP Address
You can run our free Router Detector software to locate your router's IP address. Our Router Detector tool is free to use and is part of our Network Utilities software.
You can also follow our Find Your Router IP Address article.
Forwarding a Port for a Defender 21101 DVR
We have Network Utilities software that can forward ports for you. Since Network Utilities allows you to both forward and un-forward ports easily you can keep your network security maximized, and then forward ports only when you need them.
Another option is to go through the process of forwarding ports one step at a time. The way to forward a port is:
- Log in to your router.
- Look for the port forwarding section in your router.
- Put the IP address of your DVR in the proper box in your router.
- Put the TCP and UDP ports that you are forwarding for a Defender 21101 DVR in the correct boxes in your router.
Some routers need to be rebooted in order for the changes to be saved.
You can choose your router from our list to see exactly how to forward ports for a Defender 21101 DVR:
List of Routers - Customized for Defender 21101
Those are the steps for forwarding ports in your router for a Defender 21101 DVR.