Tenda 3G611R+ User Manual page 43

Static IP
If your connection mode, static IP is chosen, you can
modify the following addressing information.

IP Address: Here enter the WAN IP address
provided by your ISP.

Subnet Mask:
here.

Gateway: Enter the WAN Gateway here.

Primary DNS Server: Enter the Primary DNS
server provided by your ISP.

Secondary DNS Server: Enter the secondary
DNS.
As for PPTP and L2TP connection settings, please refer
to the "Wizard Setup" in chapter 5.
Enter the WAN Subnet Mask