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18 CHAPTER 1: SYSTEM ACCESS
Figure 9 Provide Telnet Client Service
1 Authenticate the Telnet user through the console port on the Telnet Server (Switch
7750) before login.
By default, a password is required for authenticating the Telnet user to log in the
Switch 7750. If a user logs into Telnet without password, the system displays the
following message:
Login password has not been set!
2 Enter system view, return to user view by pressing Ctrl+Z.
<SW7750>system-view
[SW7750]user-interface vty 0
[SW7750-ui-vty0]set authentication password simple/cipher xxxx (xxxx
is the preset login password of Telnet user)
3 Log in to the Telnet client (Switch 7750). For the login process, see “Connecting
the PC to the Switch 7750”.
4 Perform the following operations on the Telnet client:
<SW7750>telnet xxxx
(XXXX can be the hostname or IP address of the Telnet Server. If it is the hostname,
you must use the
ip host command to specify it.
5 Enter the preset login password. The Switch 7750 prompt (<SW7750>) displays. If
the message,
All user interfaces are used, please try later! displays, try
to connect later.
6 Use the appropriate commands to configure the Switch 7750 or view its
operational state. Enter
? to get immediate help. For details on a specific
command, refer to the appropriate chapter in this guide.
Configuring Through a
Dial-up Modem
To configure your router through a dial-up modem:
1 Authenticate the modem user through the console port of the Switch 7750 before
the user logs in to the switch through a dial-up modem.
By default, a password is required for authenticating the modem user to log in to
the Switch 7750. If a user logs in through the modem without a password, the
user sees an error message.
<SW7750>system-view
[SW7750]user-interface aux 0
[SW7750-ui-aux0]set authentication password simple/cipher xxxx (xxxx
is the preset login password of the Modem user.)
2 Using the modem command, you can configure the console port to modem mode.
[SW7750-ui-aux0]modem
3 To set up the remote configuration environment, connect the modems to a PC (or
a terminal) serial port and to the Switch 7750 console port, as shown in
Set Up
Remote Configuration Environment.
PC
Telnet client
Telnet server