Broadband Security Router User Guide
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to access an existing wired network to take advantage of sharing the wired networks
resources, such as files, printers, and Internet access.
IP Address
An identifier for a computer or device on a TCP/IP network. Networks using the
TCP/IP Protocol route messages based on the IP Address of the destination. The format
of an IP address is a 32-bit numeric address written as four numbers separated by
periods. Each number can be from zero to 255.
IPSec
Internet Protocol Security is a security standard for network transmission. It provides
authentication and packet encryption over the Internet.
ISP
Short for Internet Service Provider, a company that provides access to the Internet,
usually for a monthly fee. The ISP provides a software package, username, password
and access phone number allowing users to log on to the Internet, browse the World
Wide Web and send and receive e-mail.
Local Area Network (LAN)
A computer network that spans a relatively small area. Most LANs are confined to a
single building or group of buildings. However, one LAN can be connected to other
LANs over any distance via telephone lines and radio waves. A system of LANs
connected in this way is called a wide area network (WAN)
MAC Address
Short for Media Access Control Address and in a hardware address that uniquely
identifies each node of a network.
NAT
Short for Network Address Translation, a routing protocol that allows global IP
Addresses to be translated into multiple private IP Addresses for use on internal LAN
networks. The explosion in the use of the Internet has created a critical problem for the
Internet Assigned Numbers Authority (IANA) which is in charge of assigning IP
Addresses to Internet users, ISPs etc.. NAT is a technology that has been introduced to
help maximize the utilization of assigned IAN and global IP Addresses. Briefly, NAT is
a technology which can create a private network domain behind a public IP. It is usually
used as a firewall. It can also be used when there are not enough IP Address.
