Modecom MC-421 User Manual page 121

network mask
NIC
packet
ping
port
PPP
PPPoA
PPPoE
protocol
remote
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 bi-
nary, IP address, subnet.
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.
Data transmitted on a network consists of units called packets. Each packet conta-
ins a payload (the data), plus overhead information such as where it came from (so-
urce 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.
Point-to-Point Protocol
A protocol for serial data transmission that is used to carry IP (and other proto-
col) data between your ISP and your computer. The WAN interface on the Wireless
Gateway uses two forms of PPP called PPPoA and PPPoE. See PPPoA, PPPoE.
Point-to-Point Protocol over ATM
One of the two types of PPP interfaces you can define for a Virtual Circuit (VC), the
other type being PPPoE. You can define only one PPPoA interface per VC.
Point-to-Point Protocol over Ethernet
One of the two types of PPP interfaces you can define for a Virtual Circuit (VC), the
other type being PPPoA. You can define one or more PPPoE interfaces per VC.
A set of rules governing the transmission of data. In order for a data transmission to
work, both ends of the connection have to follow the rules of the protocol.
In a physically separate location. For example, an employee away on travel who
logs in to the company's intranet is a remote user.
WLAN Router
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