How to configure Cisco RV180W WAN port

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STEP 1 Choose Networking > WAN (Internet) > IPv4 WAN (Internet).
STEP 2 From the Internet Connection Type drop-down menu, choose Static IP.
STEP 3 Enter this information: public IP address, Subnet mask, Default Gateway, Primary DNS Server and Secondary DNS Server.
STEP 4 Enter MTU information, for example 1500.
STEP 5 Enter MAC Address information if it is required.
STEP 6 Click Save.