Asus Internet Security Router User Manual download pdf (Page 161)

Internet Security Router User’s Manual Appendix 16. Glossary

145

from 0 to 255, separated by periods, e.g., 209.191.4.240. An IP address consists of a

network ID that identifies the particular network the host belongs to, and a host ID

uniquely identifying the host itself on that network. A network mask is used to define

the network ID and the host ID. Because IP addresses are difficult to remember, they

usually have an associated domain name that can be specified instead. See also

domain name, network mask.

ISP Internet Service Provider

A company that provides Internet access to its customers, usually for a fee.

LAN Local Area Network

A network limited to a small geographic area, such as a home, office, or small building.

LED Light Emitting Diode

An electronic light-emitting device. The indicator lights on the front of the Internet

Security Router are LEDs.

MAC address Media Access Control address

The permanent hardware address of a device, assigned by its manufacturer. MAC

addresses are expressed as six pairs of characters.

mask See network mask.

Mbps Abbreviation for Megabits per second, or one million bits per second. Network data

rates are often expressed in Mbps.

NAT Network Address Translation

A service performed by many routers that translates your network’s publicly known IP

address into a private IP address for each computer on your LAN. Only your router

and your LAN know these addresses; the outside world sees only the public IP

address when talking to a computer on your LAN.

NAT rule A defined method for translating between public and private IP addresses on your LAN.

network A group of computers that are connected together, allowing them to communicate with

each other and share resources, such as software, files, etc. A network can be small,

such as a LAN, or very large, such as the Internet.

network mask A network mask is a sequence of bits applied to an IP address to select the network ID

while ignoring the host ID. Bits set to 1 mean "select this bit" while bits set to 0 mean

"ignore this bit." For example, if the network mask 255.255.255.0 is applied to the IP

address 100.10.50.1, the network ID is 100.10.50, and the host ID is 1. See also

binary, IP address, subnet, "IP Addresses Explained" section.

NIC Network Interface Card

An adapter card that plugs into your computer and provides the physical interface to

your network cabling, which for Ethernet NICs is typically an RJ-45 connector. See

Ethernet, RJ-45.

packet Data transmitted on a network consists of units called packets. Each packet contains a

payload (the data), plus overhead information such as where it came from (source

address) and where it should go (destination address).

ping Packet Internet (or Inter-Network) Groper

A program used to verify whether the host associated with an IP address is online. It

can also be used to reveal the IP address for a given domain name.

port A physical access point to a device such as a computer or router, through which data

flows into and out of the device.

PPP Point-to-Point Protocol

A protocol for serial data transmission that is used to carry IP (and other protocol) data

1 ... 160 161 162 163 164 165 166 167

Comments to this Manuals

No comments

Asus Internet Security Router User Manual Page 161

Comments to this Manuals

Related products and manuals for Networking Asus Internet Security Router