Just installed a set of monitoring, using tplink camera and Han Bang leader, video recorder using TPlink, internal network can be remote, external network can't.

External networks generally need to manually turn on the DMZ function.

That is, the monitoring host is forwarded to the external network.

1, the fixed ip address of the monitoring host is set in the router.

2. The router turns on the DMZ function.

3. Set the DMZ host as the ip of the monitoring host.

4. Find the DDNS function of dynamic domain name.

Step 5 register DDNS

6. Log in to DDNS in the router.

7. After logging in to DDNS, copy the "virtual domain name".

8. Set the "virtual domain name" when viewing the external network on the mobile phone.