R3166-R3206-HP High-End Firewalls Getting Started Guide-6PW101

46
Logging in through modems
Introduction
The administrator can use two modems to remotely maintain a switch through its AUX port over the Public
Switched Telephone Network (PSTN) when the IP network connection is broken.
Configuration requirements
By default, no authentication is needed when you log in through modems, and the default user privilege
level is 3.
To use this method, perform necessary configurations at both the device side and administrator side.
The following table shows the configuration requirements of remote login through the AUX port by using
modem dial-in:
Ob
j
ect Re
q
uirement
Administrator side
The PC is correctly connected to the modem.
The modem is connected to a telephone cable that works properly.
The telephone number of the remote modem connected to the AUX port of the
remote switch is obtained.
Device side
The AUX port is correctly connected to the modem.
Configurations have been configured on the modem.
The modem is connected to a telephone cable that works properly.
Authentication configuration has been completed on the remote switch.
Login procedure
1. Set up a configuration environment as shown in Figure 33: connect the serial port of the PC and
the AUX port of the device to a modem respectively.
Figure 33 Set up a configuration terminal
2. Configuration on the administrator side
The PC and the modem are correctly connected, the modem is connected to a telephone cable, and the
telephone number of the remote modem connected to the AUX port of the remote switch is obtained.