3Com Switch 4200G Configuration Guide

108 CHAPTER 19: LOGGING IN THROUGH TELNET
Refer to the corresponding modules in this manual for information about AAA,
RADIUS, and SSH.
Configuration Example Network requirements
Assume that you are a level 3 AUX user and want to perform the following
configuration for Telnet users logging into VTY 0:
■ Configure the name of the local user to be “guest”.
■ Set the authentication password of the local user to 123456 (in plain text).
■ Set the service type of VTY users to Telnet.
■ Configure to authenticate users logging into VTY 0 in scheme mode.
■ The commands of level 2 are available to users logging into VTY 0.
■ Telnet protocol is supported in VTY 0.
■ The screen can contain up to 30 lines.
■ The history command buffer can store up to 20 commands.
■ The timeout time of VTY 0 is 6 minutes.
Network diagram
Figure 32 Network diagram for Telnet configuration (with the authentication mode being
scheme)
Configuration procedure
1 Enter system view.
<S4200G> system-view
2 Create a local user named “guest” and enter local user view.
[4200G] local-user guest
3 Set the authentication password of the local user to 123456 (in plain text).
[4200G-luser-guest] password simple 123456
4 Set the service type to Telnet.
[4200G-luser-guest] service-type telnet level 2
5 Enter VTY 0 user interface view.
[4200G] user-interface vty 0
6 Configure to authenticate users logging into VTY 0 in the scheme mode.
[4200G-ui-vty0] authentication-mode scheme
7 Specify commands of level 2 are available to users logging into VTY 0.
Console port
Console cable
RS-232
Console port
Console cable
RS-232