According to the following steps, caratipcan be set to unknown.
To hide the ip address of a mobile phone:
1. Enter the WiFi hotspot list, then press and hold the connected WiFi hotspot name and select "Modify Network" to enter the corresponding menu;
2. Select "Show Advanced Options" to view IP settings;
3. Enter the WiFi hotspot list, press and hold the WiFi hotspot to pop up the option to modify the network;
4. After checking the advanced option, you can modify the IP address;
5. You can set the IP address by changing the IP setting from "DHCP" to "static IP";
6. Manually fill in the IP address and network management.