IP/MAC Binding, namely, ARP (Address Resolution Protocol) Binding is used to convert a network address (e.g. IPv4 address) to a physical address such as a MAC address.
Step 1: Open a web browser and go to http://cudy.net or http://192.168.10.1.
For details, please refer to How to log into the web interface of Cudy Router?
Step 2: Click Advanced Settings -> IP/MAC Binding in the Security section.
Step 3: Click Add to append one entry to the list. Select the device from the MAC-Address list and enter IP address that you want to bind. Enter a Description for this binding entry.
Step 4: Save & Apply the settings.
You can go to System Status->Devices to check if the IP Address changed successfully or not.
Note:
The IP Address release time can be changed in DHCP. Or you can disable and enable the Wi-Fi or unplug and plug back the Ethernet cable to release the IP Address manually.