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9 Telnet and SSH
9.1 Introduction
9.1.1 Overview of User Login
To configure, monitor and maintain the local or remote devices, configure the user interface,
the user management and the terminal service.
The user interface provides the login plane. The user management guarantees the login
security and the terminal service provides the login protocol.
The product supports the following login methods:
9.1.2 Telnet Terminal Services
Telnet Services
Telnet is an application layer protocol in the TCP/IP protocol suite. It provides remote login
and a virtual terminal service through the network.
The router provides the following Telnet services:
Figure 9-1 Telnet client services
PC
9-2
Login through the console port
Local or remote login through the AUX port
Local or remote login through Telnet or SSH
Telnet server: You can run the Telnet client program on a PC to log in to the router,
configure and manage it. The router acts as a Telnet server.
Telnet client: You can run the terminal emulation program or the Telnet client program
on a PC to connect with the router. With the telnet command, you can log in to other
routers to configure and mange them. As shown in
the Telnet server and the Telnet client.
Telnet Session 1
Redirection terminal services: You can run the Telnet client program on a PC to log in to
the router through a specified interface. Then connect with the serial interface devices
that are connected to the asynchronous interface of the router, as shown in
The typical application is to connect the 8/16-port asynchronous interface of the router
with multiple devices for their remote configuration and maintenance.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Configuration Guide - Basic Configurations
Telnet Session 2
RouterA
Quidway NetEngine80
Figure
9-1, Router A serves as both
Telnet Server
RouterB
Issue 04 (2009-12-20)
Figure
9-2.
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