Glossary
Electronics Engineers
IEEE (pronounced
IMEI – International Mobile Equipment Identity
The IMEI number is a 15 digit numnber which includes information on the origin, model, and serial number unique to every mobile device. The IMEI number is used by the mobile network to identify valid devices.
IP – Internet Protocol
A part of a suite of protocols that effectively defines the Internet as we know it. Specifies addressing and control information for routing data packets over networks.
IP address
The address of a host on the Internet, consisting of four numbers, each from 0 to 255, separated by periods, for example 192.168.1.1. 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. See also Private IP Address and Public IP Address.
LAN – Local Area Network
A computer network limited to the immediate area, such as a home, office, or small building.
Lease time
The amount of time that a dynamically assigned IP address will be valid for a specific device.
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 hexadecimal characters
Mass Storage
Various techniques and devices used to store large amounts of data. An example of a mass storage device is a hard disk.
MBR – Mobile Broadband Router
A router providing residential and small office users with broadband services like high- speed data, voice, and fax connectivity. Internet access is provided through the mobile communications network.
NAT – Network Address Translation
A service performed by many routers that translates a network’s IP address into a private IP address for each device on the LAN. Only the router and the LAN know these addresses; the outside world sees only the public IP address when talking to a computer on the LAN.
Network mask
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 Subnet mask.
Packet
The units of data transmitted on a network. Each packet contains a payload (the data), plus overhead information such as where it came from (source address) and where it will go (destination address).
PAP – Password Authentication Protocol PAP is a simple authentication protocol used to authenticate a user to a remote access server or Internet Service Provider (ISP). PAP
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