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By using the Barricade’s built-in DHCP (Dynamic Host Control 
Protocol) server you are allowing the Barricade to handle all the IP 
addressing on your Local Area Network (LAN). This can save you 
much of the time and hassle of administrating your network. If you 
have a server on your network that requires a static IP address, 
you may still use the DHCP server and manually assign a static IP 
address to your server. We recommend leaving the DHCP Server 
“Enabled.”
10. In most applications, you should leave the DHCP Server 
“Enabled.” If you prefer to handle all the IP addressing on your 
network yourself, click disable.
11. There is usually no need to change the IP address pool. If you 
change the pool range, make sure the rst three octets match the 
Barricade’s IP address, i.e., 192.168.2.xxx thru 192.168.2.yyy 
A Domain Name Server (DNS) is like an index of names and Web 
addresses. If you type a Web address into your browser, such as 
www.smc-europe.com, a DNS server will nd that name in its index 
and nd the matching IP address: 198.137.240.92. Most ISPs provide 
a DNS server for speed and convenience. Since you are connecting 
to the Internet with dynamic IP settings, it is likely that your DNS 
servers are also provided dynamically.
12. Click “ENTER” when nished.
At this point, the LAN side of your Barricade is now congured. But 
you must still congure it to connect to the Internet. There are three 
different general congurations for high-speed Internet connections. 
You need to know about your Internet connection to determine which 
conguration to use. You found out most of what you need to know 
when you recorded your IP settings in earlier steps. Here are some 
guidelines to determine which conguration you should use: