Aztech WL557RT4 User Manual page 31

IP Address: Enter the WAN IP address provided by your ISP. It is an essential
parameter, and you cannot leave it blank.
Subnet Mask: Enter the WAN subnet mask provided by your ISP. The subnet
mask may vary according to the network types. Generally, it is set to be
255.255.255.0.
Gateway IP Address: Enter the gateway IP address provided by the ISP. It is the
IP address for connecting the ISP.
Primary DNS/Secondary DNS: The ISP usually provides at least one DNS
address. If two DNS addresses are provided, enter the other one in Secondary
DNS.
5. After setting the connection type, click Next to complete the Wizard
configuration.
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