SMC Networks Barricade SMC2404WBR - Manual (Page 7)

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Static (Fixed) IP Address
If you have been provided a Fixed IP from your Internet Service Provider, they
should have given you the IP Address, Subnet Mask, Gateway, and DNS
Addresses. In this case, you can configure your broadband router with a Static IP
on the WAN interface. This IP address is constant and the ISP will not change it.
If you are unsure of any of the necessary IP Addresses, please contact your ISP
before proceeding with the installation of the router.
Setup Wizard for Static IP Connection