3.Choose the type of WAN address
In this example, the SonicWALL router has a permanent fixed IP address, so select the Static IP option.
Then click the Next button.
4.Enter the WAN settings
Enter the WAN interface’s IP address and mask. For Gateway, enter the ISP’s address (see "The network" on page 3). For DNS Server Address, enter the address of the DNS server that your router will access.
Then click the Next button.
Page 16 AlliedWare™ OS How To Note: VPNs with SonicWALL routers