Kraun KR.XY, User Manual

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The address of a host (computer) on the Internet, consisting of four numbers, each 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 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 or small office.
LED Light Emitting Diode
An electronic light-emitting device. The indicator lights on the front of the Integrated Access
Device 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 hex characters, with each pair separated by colons. For example;
NN:NN:NN:NN:NN:NN
.
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.
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 binary, IP address, subnet .
NIC Network Interface Card
An adapter card that plugs into your computer and provides the physical interface to your
network cabling. For Ethernet NICs this 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 between