1. access camera on the computer by its IP. Here is the method.
2. Fix system‘s IP so that its IP won‘t change.
Here is instruction on how to fix the system‘s IP.
3. Go to DDNS setting to create a DDNS domain. The status must be normal.
Notice: if your network‘s external IP is static, not dynamic, you don‘t need to set up DDNS and you can skip this step.
4. Use a computer to go to the router‘s page to do port forwarding with DVR‘s IP, HTTP port
，rtsp port and server port
After you finish port forwarding, you can open www.canyouseeme.org to check if the port is open.
Finally, if DDNS and port forwarding succeed, address like www.simpleddns.com/annkesupport can be opened anywhere on any computer.