Example for Configuring Internet Access Using Static IP Addresses - AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S Web-based Typical Configuration Examples - Huawei
Configure a static IP address
How to make your device's IP address Static & Port Forward – A Practical Demo – part 1 | alselectro
Setting a Static WAN IP address on the TP-Link and DD-WRT routers