IBM ADSL Bridge/ Router Heritage - Manual (Page 158)

Heritage Series ADSL Bridge/ Router
A-9 Appendix
adjacent segment is passed across the bridge. A bridge operates at
Layer 2 of the OSI reference model.
CHAP
Challenge Handshake Authentication Protocol. A security protocol
supported under Point-to-Point Protocol (PPP) used to prevent
unauthorized access to devices and remote networks. Uses encryption
of password, device names, and random number generation.
Class A, B, and C networks:
The values assigned to the first few bits in an IP network address
determine which class designation the network has. In decimal
notation, Class A network addresses range from 1.X.X.X to 126.X.X.X,
Class B network addresses range from 128.1.X.X to 191.254.X.X, and
Class C addresses range from 192.0.1.X to 223.255.254.X.
Client
An intelligent workstation that makes requests to other computers
known as servers. PC computers on a LAN can be clients.
Community strings
Sequences of characters that serve much like passwords for devices
using SNMP. Different community strings may be used to allow an
SNMP user to gather device information or change device
configurations.
Console port
Device used by the network administrator to configure and monitor
the Modem. The console port employs an RS232 interface. Command
Line Interface are used on the console port.
DHCP
Dynamic Host Configuration Protocol - Service that provides network
information (such as IP addresses, masks, domain names) to PCs and
other clients automatically.
DNS
Domain Name Service - Transmission Control Protocol/Internet
Protocol (TCP/IP) service which translates a name that a person can
remember into an IP address that a computer can use.
DTE
Data Terminal Equipment - Term defined by standards committees,
that applies to communications equipment, typically personal
computers or data terminals, as distinct from other devices that attach
to the network, typically modems.