Avaya Configuring and Troubleshooting Bay Dial VPN (DVS) Networks Instrukcja Użytkownika Strona 179

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Glossary
303509-A Rev 00 Glossary-3
Internet Protocol (IP)
Part of the TCP/IP suite of protocols defined in RFC 791. Describes the
software responsible for routing packets and addressing devices. The standard
is used for sending the basic unit of data, an IP datagram, through an
internetwork. Provides an unreliable, connectionless data delivery service on a
“best-effort” basis.
IPX
Internet Packet Exchange. The Novell NetWare protocol that provides
datagram delivery of messages. IPX facilitates communication between end
stations on geographically dispersed LANs supporting a large range of
applications and provides the network layer functions of addressing and
routing to facilitate communications between a client and a NetWare server.
ISDN connection
Integrated Services Digital Network. An international telecommunications
standard for voice, data, and signaling over digital connections. ISDN has two
types of service: BRI (basic rate interface) and PRI (primary rate interface).
ISP
Internet service provider. See also service provider.
LCP
Link Control Protocol. A component of PPP that negotiates the link
characteristics of a PPP session with the peer connection interface. An
example of a link characteristic is the maximum transmission unit (MTU).
local authentication
server
The server on the Dial VPN network that exchanges authentication messages
with the Remote Annex to authenticate a PPP connection. The Access Control
Protocol (ACP) server usually performs this function in a Dial VPN network.
MAC address
Media access control address. A unique 48-bit number (usually represented as
a 12-digit hexadecimal number) that is encoded in the circuitry of a device to
identify it on a local area network. The hardware address of a device
connected to shared media.
Mobile IP protocol
A protocol described in an IEFT draft specification that allows transparent
routing of IP datagrams to mobile nodes on the Internet.
mobile node
A dial-up host or router that changes its point of attachment from one network
or subnetwork to another, and performs the functions as defined in the IP
Mobility Draft Standard Specification. In the Dial VPN environment, the
mobile node functions are implemented as a proxy agent within the Remote
Annex so that the behavior of a mobile node is simulated for each remote node
that has established a connection to the Remote Annex.
NAS
The gateway serves as a network access server (NAS); that is, it provides a
service to the dial-in user, such as PPP or Telnet. The NAS is a client of the
RADIUS server on the home/corporate network. The client is responsible for
passing user information to the designated RADIUS server.
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