Lantronix SLC16, Руководство пользователя

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Appendix F: Protocol Glossary
SLC™ Console Manager User Guide 332
remote peer requests PAP or CHAP authentication, provides the Dial-out Login and Dial-out
Password as authentication tokens. Once authenticated, the CBCP handshake with the
server determines the number to use for dial-back.

The SLC device will request the type of number defined by CBCP Client Type - either an
Admin-defined Number (the CBCP server determines the number to call) or a User-defined
Number (the SLC console manager will provide the
Fixed Dial-back Number as the number
to call). If the CBCP handshake is successful, the SLC device will terminate the PPP
connection, hang up, and wait for the server to dial back. When the server dials and the PPP
connection is established, the user will be authenticated via PAP or CHAP (configured with the
Authentication setting).

For PAP, the Local User list will be used to authenticate the login and password sent by the
PPP peer.

For CHAP, the CHAP Handshake Host/User Name and Secret/User Password will be used
to authenticate the login and password sent by the PPP peer. Once authenticated, a PPP
session will be established using either negotiated IP addresses or specific IP addresses
(determined by the
Negotiate IP Address setting).
Notes:

In a state where the modem will be answering a call, the modem should always be configured
for manual answer, not auto answer.

When answering a call, the SLC console manager answers after the 2
nd
ring.

Any text or PPP connection can be terminated by setting the modem state to disabled.
NAT (Network Address Translation)
An Internet standard that enables a LAN to use one set of IP addresses for internal traffic and a
second set of addresses for external traffic. This enables a company to shield internal addresses
from the public Internet.
NFS (Network File System)
A protocol that allows file sharing across a network. Users can view, store, and update files on a
remote computer. You can use NFS to mount all or a portion of a file system. Users can access
the portion mounted with the same privileges as the user’s access to each file.
NIS (Network Information System)
System developed by Sun Microsystems for distributing system data such as user and host names
among computers on a network.
NMS (Network Management System)
NMS acts as a central server, requesting and receiving SNMP-type information from any computer
using SNMP.
NTP (Network Time Protocol)
A protocol used to synchronize time on networked computers and equipment.
PAP (Password Authentication Protocol)
A method of user authentication in which the username and password are transmitted over a
network and compared to a table of name-password pairs.
PPP (Point-to-Point Protocol)
A protocol for creating and running IP and other network protocols over a serial link.