5 Access Server Configuration and Management Manual

AWAN 3883/4/5 Access Server Configuration and Management Manual—424242-001

Glossary-1

Glossary

AppleTalk. A proprietary networking protocol developed by Apple Computer, Inc. to enable

Apple computers to talk to other computers.

Apple Remote Access Protocol (ARAP). An Apple Computer, Inc. protocol that allows a

Macintosh computer to communicate with another Macintosh computer or with an

AppleTalk network, over standard telephone lines.

ARAP. See Apple Remote Access Protocol (ARAP).

authentication. A function in which a user’s identity is verified.

authorization. The creation of specific rights for a user once the user has been authenticated.

Autoconnect feature. An AWAN access server feature that enables asynchronous terminal or

terminal emulator users to connect to the Tandem NonStop server application

automatically. When the Autoconnect feature is enabled, the AWAN access server login

and local prompts are not displayed and users are connected directly to the Tandem

NonStop server application; automatic port logout occurs when the session ends.

BOOTP. A protocol that enables the AWAN access server to obtain an Internet Protocol (IP)

address.

broadcast. A method of sending information addressed to two or more receiving devices

simultaneously.

Challenge Handshake Authentication Protocol (CHAP). A protocol that is used to verify a

user's identity using a three-way handshake with a challenge and a response. CHAP

issues a challenge to a user attempting to connect to the network. The user then sends a

response. Both the challenge and the response are encrypted, then the encryptions are

compared.

CHAP. See Challenge Handshake Authentication Protocol (CHAP).

community name. The name for a group of users with the same network capabilities. The

name can also be used as a password for the users.

Current Loop. An alternative to RS-232 that is supported by some terminals and serial

printers. Current Loop support is provided by the RS-232/20mA Current Loop port

module for AWAN access server models 3884 and 3885.

Ethernet. A local area network (LAN) that uses the carrier sense multiple access with

collision detection (CSMA/CD) access method on a bus topology and is the basis for the

IEEE 802.3 standard.

Ethernet frame type. A structure that defines how data is grouped into packets. The frame

types supports Ethernet II IEEE 802.2, 802.2, 802.3 SNAP.