Netopia 435 Reference Manual page 258

GL-3
DDP (Datagram Delivery Protocol): Defines socket-to-socket
delivery of datagrams over an AppleTalk internet.
default zone: When a Phase II EtherTalk network includes more
than one zone, all routers on that network must be configured to
assign one of these zones as a default zone. The default zone is
temporarily assigned to any Phase II EtherTalk node that hasn't
chosen a zone. The user may choose another zone by opening the
Network Control Panel, selecting the correct physical connection,
and then choosing a zone in the scrolling field displayed.
DHCP (Dynamic Host Configuration Protocol): A service that lets
clients on a LAN request configuration information, such as IP host
addresses, from a server.
DNS (Domain Name Service): A TCP/IP protocol for discovering
and maintaining network resource information distributed among
different servers.
download: The process of transferring a file from a server to a
client.
Ethernet: A networking protocol that defines a type of LAN
characterized by a 10 Mbps (megabits per second) data rate.
Ethernet is used in many mainframe, PC, and UNIX networks, as
well as for EtherTalk.
Ethernet address: Sometimes referred to as a hardware address.
A 48-bits long number assigned to every Ethernet hardware device.
Ethernet addresses are usually expressed as 12-character
hexadecimal numbers, where each hexadecimal character (0
through F) represents four binary bits. Do not confuse the Ethernet
address of a device with its network address.
EtherTalk: Apple's data-link software that allows an AppleTalk
network to be connected by Ethernet cables. EtherTalk is a protocol
within the AppleTalk protocol set. Two versions of EtherTalk are in
common use, designated as Phase I and Phase II EtherTalk.
extended network: A network using AppleTalk Phase II protocols;
EtherTalk 2.0 and TokenTalk are extended networks. LocalTalk
networks are compatible with Phase II but are not extended
because a single LocalTalk network cannot have multiple network
numbers or multiple zone names.