User's Manual

Firewall

Firewalls are methods used to keep networks secure from malicious intruders and

unauthorized access. Firewalls use filters to prevent unwanted packets from being

transmitted. Firewalls are typically used to provide secure access to the Internet while

keeping an organization's public Web server separate from the internal LAN.

Firmware

Firmware refers to memory chips that retain their content without electrical power

(for example, BIOS ROM). The router firmware stores settings made in the interface.

Fragmentation

Refers to the breaking up of data packets during transmission.

FTP

FTP (File Transfer Protocol) is used to transfer files over a TCP/IP network, and is

typically used for transferring large files or uploading the HTML pages for a Web site

to the Web server.

Gateway

Gateways are computers that convert protocols enabling different networks,

applications, and operating systems to exchange information.

Host Name

The name given to a computer or client station that acts as a source for information on

the network.

HTTP

HTTP (HyperText Transport Protocol) is the communications protocol used to

connect to servers on the World Wide Web. HTTP establishes a connection with a

Web server and transmits HTML pages to client browser (for example Windows IE).

HTTP addresses all begin with the prefix 'http://' prefix (for example,

http://www.yahoo.com).

ICMP

ICMP (Internet Control Message Protocol) is a TCP/IP protocol used to send error and

control messages over the LAN (for example, it is used by the router to notify a

message sender that the destination node is not available).

IP (Internet Protocol) is the protocol in the TCP/IP communications protocol suite that

contains a network address and allows messages to be routed to a different network or

subnet. However, IP does not ensure delivery of a complete message—TCP provides

the function of ensuring delivery.

IP Address

The IP (Internet Protocol) address refers to the address of a computer attached to a

TCP/IP network. Every client and server station must have a unique IP address.