Appendix C. Glossary - Black Box LR9603A User Manual

PURE NETWORKING BROADBAND ROUTER

Appendix C. Glossary

Bridge: A bridge is an intelligent, internetworking device that forwards or filters
packets between different networks based on Data Link layer (MAC) address
information.
Default Gateway (Router): Every non-router IP device needs to configure a default
gateway's IP address. When the device sends out an IP packet, if the destination is
not on the same network, the device has to send the packet to its default gateway,
which will then send it out toward the destination.
DHCP: Dynamic Host Configuration Protocol. This protocol automatically gives
every computer on your home network an IP address.
DNS Server IP Address: DNS stands for Domain Name System, which allows
Internet servers to have a domain name (such as www.broadbandrouter.com) and
one or more IP addresses (such as 192.34.45.8). A DNS server keeps a database of
Internet servers and their respective domain names and IP addresses so that when
a domain name is requested (as in typing "broadbandrouter.com" into your Internet
browser), the user is sent to the proper IP address. The DNS server IP address used
by the computers on your home network is the location of the DNS server your ISP
has assigned to you.
DSL Modem: DSL stands for Digital Subscriber Line. A DSL modem uses your
existing phone lines to transmit data at high speeds.
Ethernet: A standard for computer networks. Ethernet networks are connected by
special cables and hubs. They move data around at up to 10/100 Mbps.
Idle Timeout: After there is no traffic to the Internet for a pre-configured amount
of time, the connection will automatically be disconnected.
IP Address and Network (Subnet) Mask: IP stands for Internet Protocol. An IP
address consists of a series of four numbers separated by periods that identifies a
single, unique Internet computer host in an IP network. (Example: 192.168.2.1.)
It consists of 2 portions: the IP network address and the host identifier.
The IP address is a 32-bit binary pattern that can be represented as four cascaded
decimal numbers separated by "." For example, an address follows this pattern:
aaa.aaa.aaa.aaa, where each "aaa" can be anything from 000 to 255, or as four
cascaded binary numbers separated by ".":
bbbbbbbb.bbbbbbbb.bbbbbbbb.bbbbbbbb, where each "b" can either be 0 or 1.
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