3-1 
3  Logging In Through Telnet/SSH 
Logging In Through Telnet 
When logging in through Telnet, go to these sections for information you are interested in: 
z  Introduction 
z  Common Configuration 
z  Telnet Login Configuration with Authentication Mode Being None 
z  Telnet Login Configuration with Authentication Mode Being Password 
z  Telnet Login Configuration with Authentication Mode Being Scheme   
Introduction 
You can telnet to a remote switch to manage and maintain the switch. To achieve this, you need to 
configure both the switch and the Telnet terminal properly. 
Table 3-1 Requirements for Telnet to a switch 
Item  Requirement 
Start the Telnet Server 
The IP address of the VLAN of the switch is configured and the route 
between the switch and the Telnet terminal is available. 
Switch 
The authentication mode and other settings are configured. Refer to 
Table 3-2 and Table 3-3. 
Telnet is running. 
Telnet terminal 
The IP address of the management VLAN of the switch is available. 
 
Telnet Connection Establishment 
Telnetting to a Switch from a Terminal 
You can telnet to a switch and then configure the switch if the interface of the management VLAN of 
the switch is assigned with an IP address. (By default, VLAN 1 is the management VLAN.)   
Following are procedures to establish a Telnet connection to a switch: 
Step 1: Log in to the switch through the Console port, enable the Telnet server function and assign an 
IP address to the management VLAN interface of the switch. 
z  Connect to the Console port. Refer to Setting Up the Connection to the Console Port. 
z  Execute the following commands in the terminal window to enable the Telnet server function and 
assign an IP address to the management VLAN interface of the switch. 
# Enable the Telnet server function and configure the IP address of the management VLAN interface 
as 202.38.160.92, and .the subnet mask as 255.255.255.0. 
<Sysname> system-view