environment
The computer is directly connected to the optical modem, IP address: 192.168.1.140
main router WTA301, connected to the optical modem, external network IP address: 192.168.1.30, LAN gateway address: 192.168.30.1
study router TPLink WR842N, connected under the main route, external Network IP address: 192.168.30.32, LAN gateway address: 192.168.32.1
Purpose
The computer can access the management interface of the study router TPLink WR842N
operate
1. Connect to the wifi of TPLink WR842N router, enter the administrator password, and set the external network to be accessible
2. Make sure that in the network environment as shown in the figure below, enter 192.168.30.32 on the browser of the computer to access the management page of TPLink
3. Turn on the DDNS function
If you do not enable the DDNS function, after doing port mapping on WTA301 (see step 4), you will be prompted [You have no authority to access this device!] when using the upper layer port to access
4. Log in to the WTA301 management page and add port mapping
5. The network structure is restored to the figure below, directly enter http://192.168.1.30:8080/ to access the management interface of TPLink WR842N