NetComm NB4 User Manual page 70

NAT
NAT rule
network
network mask
NIC
packet
ping
port
POTS
POTS splitter
PPP
NB4 User Guide
70
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.
A defined method for translating between public and private IP
addresses on your LAN.
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.
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
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.
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).
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.
A physical access point to a device such as a computer or router,
through which data flows into and out of the device.
Plain Old Telephone Service Traditional analog telephone service
using copper telephone lines. Pronounced pots. See also PSTN.
See splitter.
Point-to-Point Protocol A protocol for serial data transmission
that is used to carry IP (and other protocol) data between your
ISP and your computer. The WAN interface on the My ADSL
Modem uses two forms of PPP called PPPoA and PPPoE. See
also PPPoA, PPPoE.
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