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Appendix A: GLOSSARY
Default:
The value assigned to a configuration parameter when the gateway is first powered on.
DHCP:
Dynamic Host Configuration Protocol. A TCP/IP protocol that lets a network connected to the
Internet automatically assign a temporary IP address to a host when the host connects to the
network.
Ethernet address:
Ethernet:
A standard protocol (IEEE 802.3) for a 10-Mbps baseband local area network (PAT) bus
that supports high-speed communication among systems. It operates at the Physical Layer of
the OSI Model.
gateway:
A communications device that connects two different networks.
IP address:
Internet Protocol address. The address assigned to an Internet host.
ISP:
Internet Service Provider. An organization that provides access to the Internet.
network address:
ping:
An echo request sent to check the accessibility of a device.
PPPoE:
Point-to-Point Protocol over Ethernet. A method for establishing sessions and encapsulating
PPP packets over an Ethernet, specified by RFC 2516.
protocol:
A set of rules that govern the transmission of data between interconnected devices to
maintain or improve communication.
PSTN:
Public Switched Telephone Network. The standard telephone network.
remote host:
A host connected to, and distinguished from, the local host.
RJ11:
A 6-position jack used with dial networks and telephone sets.
RJ45:
An 8-position jack used with programmable dial networks.
server:
Hardware or software that offers a specific service, such as database management, to a client.
subnet address:
subnet mask:
A number that identifies the subnet portion of a network address, so that IP addresses
can be shared on a local area network.
subnet:
An addressable independent network segment.
xDSL:
A generic term for all varieties of DSL.
Another name for MAC address.
The network portion of an IP address.
The subnet portion of an IP address.
1810 VoIP Gateway User's Guide
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