D-Link DI-1162 - Manual (Page 14)

DI-1162 Remote Access Router
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assigning and managing IP addresses for each individual machine on
the LAN.
Data Compression
The DI-1162 incorporates the hardware-based Stac LZS Data
Compression for CCP (Compression Control Protocol).
Network Address Translation (NAT/NAPT)
This feature allows multiple users on the LAN to access the Internet
(through an Internet Service Provider) concurrently through a single IP
address. This is especially useful for corporate office environments,
where a large number of users need access to the internet, but only a
few internet addresses are available.
Applications for the DI-1162
Some applications for the DI-1162 include:
Internet Access
The DI-1162 supports the TCP/IP (a.k.a. IP) protocol, which is the
protocol language used for the Internet. This router allows everyone
connected to the LAN to access the internet.
Internet Security
The DI-1162 can act as a firewall between your office network and the
internet, and can hide the size of your office network and the host
addresses of your office computers from prying internet users. It can
also filter traffic to and from the internet allowing only certain types of
communications to or from certain locations to pass through.