Tenda AC1750 User Manual page 61

Internet or other external networks to access and manage
the device remotely via a web browser.
For example: If you want to allow only the PC at the IP address of
218.88.93.33 from Internet to access Device's web-based utility
via port: 8080, then configure the same settings as shown on the
screenshot below on your Device.
Note:
1. To access the device via port 8080, enter "http://x.x.x.x:8080"
where "x.x.x.x" represents the the device's Internet IP address
and 8080 is the remote admin port. Assuming the device's
Internet IP address is 220.135.211.56, then, simply replace the
"x.x.x.x" with "220.135.211.56" (namely,
http://220.135.211.56:8080).
Leaving the IP address field at "0.0.0.0" makes the device
remotely accessible to all the PCs on Internet or other external
networks; populating it with a specific IP address, say,
218.88.93.33, makes the device only remotely accessible to the
PC at the specified IP address.
Wireless AC1750 Dual-band Gigabit Router
60