Appendix D: Glossary - Honeywell AlarmNet 7847i-E Installation And Setup Manual

Appendix D: Glossary

AES – Advanced Encryption Standard
DHCP – Dynamic Host Configuration Protocol. Provides a mechanism for allocating IP
addresses dynamically so that addresses can be reused when hosts no longer need them.
DNS – Domain Name System. A distributed hierarchical naming system used to resolve
domain names (e.g., www.yahoo.com) into numerical IP addresses (e.g., 204.17.25.1.).
DSL – Digital Subscriber Line
Gateway IP Address – A gateway (sometimes called a router) is a computer and/or software
used to connect two or more networks (including incompatible networks) and translates
information from one network to the other. The Gateway IP address is the IP address for the
gateway.
IP – Internet Protocol
IP Address – A unique number consisting of four parts separated by periods, sometimes
called a "dotted quad.," for example: 204.17.29.11, assigned to every computer/workstation
connected to the Internet. IP numbers can be "static" (assigned and unchanging) or
"dynamic," assigned via DHCP at each and every startup.
ISP – Internet Service Provider
LAN – Local Area Network
MAC Address – The hardware address of a device connected to a network.
NAT – Network Address Translation
PPP – Point-to-Point Protocol
PPPoE – Point-to-Point Protocol over Ethernet
Subnet Mask – A Subnet is a portion of a network that shares a network address with other
portions of the network, and is distinguished by a subnet number. The Subnet Mask is a 32-
bit address mask used in IP to indicate the bits of an IP address that are being used for the
subnet address.
TCP/IP – Transmission Control Protocol / Internet protocol
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