Operation Manual

Cerberus Wi-Fi Lite (P6381-0)

WAN Interface Setup

Configure advanced WAN interface settings in the WAN Interface Setup screen. This screen

varies depending on the connection type you select.

The following list describes the new fields in this screen. For other field descriptions, refer to

Setup Wizard: WAN Interface Setup section of this manual.

MTU Size – MTU is the Maximum Transmission Unit. It specifies the largest packet size

permitted for Internet transmission. Keep the default setting, 1452, to have the router select

the best MTU for your Internet connection.

Attain DNS Automatically – A DNS (Domain Name System) server keeps mappings of IP

addresses and domain names. Thus you don’t have to enter an IP address to access a web

site/device. If your ISP dynamically assigns DNS information, select this option to obtain DNS

server IP address automatically.

Set DNS Manually – Select this option if you have DNS server IP address(es) provided by

your ISP.

DNS 1 .. 3 – Enter the IP address of a DNS server in dotted decimal notation. For example,

192.168.1.10.

Clone MAC Address – Some ISPs performs authentication based on a MAC address to allow

only one computer to use the Internet connection. To allow more than one computer to share

an Internet connection, enter a computer’s MAC address to copy to the WAN interface.

Enable UPnP – UPnP (Universal Plug and Play) is a communication standard that allows

simple peer-to-peer network connectivity between UPnP-enabled devices. With UPnP, a

device can automatically join a network, obtain an IP address, convey its presence and

manage other UPnP-enabled devices without additional configuration. Select this option to

activate this feature. This allows you to view the Wireless-G Router information and remotely

manage the Wireless-G Router through a UPnP-ready operating system (such as Windows

XP).

Enable IPSec Pass through on VPN Connection – IPSec (Internet Protocol Security) is a

standard protocol that allows a device to establish secure connections at the IP layer. Select

this option to allow IPSec tunnels to pass through the Wireless-G Router.