Cisco OL-4015-08 User Manual page 647

CHAP
chargen
checksum
cipher
ciphertext
clear channel
cleartext
CLI
client/server
computing
CNS
comp-lzs
Configuration,
Config, Config File
OL-4015-08
Challenge Handshake Authentication Protocol. Security feature supported on
lines using PPP encapsulation that prevents unauthorized access. CHAP does not
itself prevent unauthorized access, it merely identifies the remote end. The
router or access server then determines whether that user is allowed access. See
also PAP.
Character Generation. Via TCP, a service that sends a continual stream of
characters until stopped by the client. Via UDP, the server sends a random
number of characters each time the client sends a datagram.
Computational method for checking the integrity of transmitted data, computed
from a sequence of octets taken through a series of arithmetic operations. The
recipient recomputes the value and compares it for verification.
An encryption-decryption algorithm.
Encrypted, unreadable data, prior to its decryption.
A clear channel is one through which non-encrypted traffic can flow. Clear
channels place no security restrictions on transmitted data.
Decrypted text. Also called plaintext.
command-line interface. The primary interface for entering configuration and
monitoring commands to the router. Refer to the Configuration Guide for the
router you are configuring for information on what commands you can enter
from the CLI.
Term used to describe distributed computing (processing) network systems in
which transaction responsibilities are divided into two parts: client (front end)
and server (back end). Also called distributed computing. See also RPC.
Cisco Networking Services. A suite of services that support scalable network
deployment, configuration, service-assurance monitoring, and service delivery.
An IP compression algorithm.
The file on the router that holds the settings, preferences, and properties you can
administer using SDM.
Cisco Router and Security Device Manager Version 2.2 User's Guide
Glossary
GL-5