Standard Configuration; Nat Enabled Configuration - SonicWALL TELE3 SP Administrator's Manual

Standard Configuration

If your ISP provided you with enough IP addresses for all the computers and network devices
on your LAN, enable Standard mode.
To configure Standard addressing mode, complete the following instructions:
1. Select Standard from the Network Addressing Mode menu. Because NAT is disabled,
you must assign valid IP addresses to all computers and network devices on your LAN.
2. Enter a unique, valid IP address from your LAN address range in the SonicWALL LAN IP
Address field. The SonicWALL LAN IP Address is the address assigned to the
SonicWALL LAN and is used for management of the SonicWALL.
3. Enter your network subnet mask in the LAN Subnet Mask field. The LAN Subnet Mask
tells your SonicWALL which IP addresses are on your LAN. The default value,
"255.255.255.0", supports up to 254 IP addresses.
4. Enter your WAN router or default gateway address in the WAN Gateway (Router)
Address field. Your router is the device that connects your network to the Internet. If you
use Cable or DSL, your WAN router is located at your ISP.
5. Enter your DNS server IP address(es) in the DNS Servers field. The SonicWALL uses the
DNS servers for diagnostic tests and for upgrade and registration functionality.
6. Click Update. Once the SonicWALL has been updated, a message confirming the update
is displayed at the bottom of the browser window. Restart the SonicWALL for these
changes to take effect.

NAT Enabled Configuration

Network Address Translation (NAT) connects your entire network to the Internet using a single
IP address. Network Address Translation offers the following:
• Internet access to additional computers on the LAN. Multiple computers can access the In-
ternet even if your ISP only assigned one or two valid IP addresses to your network.
• Additional security and anonymity because your LAN IP addresses are invisible to the out-
side world.
If your ISP hasn't provided enough IP addresses for all machines on your LAN, enable NAT and
assign your network a private IP address range. You should use addresses from one of the
following address ranges on your private network:
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
Note: If your network address range uses valid TCP/IP addresses, Internet sites within that
range are not accessible from the LAN. For example, if you assign the address range 199.2.23.1
- 199.2.23.255 to your LAN, a Web server on the Internet with the address of 199.2.23.20 is
not accessible.
General and Network Settings Page 15