Nat Enabled Configuration - Dell SonicWALL GX250 Manual

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 may ac-
cess the Internet 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 outside 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 will not be 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 will not be accessible.
When NAT is enabled, users on the Internet cannot access machines on the LAN unless
they have been designated as Public LAN Servers.
To enable Network Address Translation (NAT), complete the following
instructions.
Page 40 NETWORK SETTINGS