H3C Technologies H3C S7500E Series Switches - Manual (Page 54)

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The common settings configured for console login take effect immediately. If you configure the
common settings after you log in through the console port, the current connection may be interrupted.
Therefore, use another login method. After you configure common settings for console login, you need
to modify the settings on the terminal to make them consistent with those on the device.
Logging In Through Telnet
Introduction
The device supports telnet. You can telnet to the device to remotely manage and maintain it, as shown
in Figure 3-9 .
Figure 3-9 Telnet login
The following table shows the configuration requirements of telnet login.
Object Requirements
Configure the IP address of the VLAN interface, and make sure the telnet
server and client can reach each other.
Telnet server
Configure the authentication mode and other settings
Run the telnet client program.
Telnet client
Obtain the IP address of the VLAN interface on the server
By default, the device is enabled with the telnet server and client functions.
z On a device that serves as the telnet client, you can log in to a telnet server to perform operations
on the server.
z On a device that serves as the telnet server, you can configure the authentication mode and user
privilege level for telnet users. By default, password authentication is adopted for telnet login, but
no login password is configured. Therefore, you cannot log in to the device through telnet by
default. Before you can telnet to the device, you need to log in to the device through the console
port and configure the authentication mode, user privilege level, and common settings.
This section includes these topics:
z Telnet Login Authentication Modes
z Configuring None Authentication for Telnet Login
z Configuring Password Authentication for Telnet Login