Operation Manual – Login
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 4
Logging in Using Modem
4-1
Chapter 4 Logging in Using Modem
4.1 Introduction
The administrator can log into the Console port of a remote switch using a modem
through PSTN (public switched telephone network) if the remote switch is connected to
the PSTN through a modem to configure and maintain the switch remotely. When a
network operates improperly or is inaccessible, you can log into the switches in the
network in this way to configure these switches, to query logs and warning messages,
and to locate problems.
To log into a switch in this way, you need to configure the administrator side and the
switch properly, as listed in the following table.
Table 4-1 Requirements for logging into a switch using a modem
Item Requirement
The PC can communicate with the modem connected to it.
The modem is properly connected to PSTN.
Administrator
side
The telephone number of the switch side is available.
The modem is connected to the Console port of the switch properly.
The modem is properly configured.
The modem is properly connected to PSTN and a telephone set.
Switch side
The authentication mode and other related settings are configured
on the switch. Refer to
Table 2-3.
4.2 Configuration on the Administrator Side
The PC can communicate with the modem connected to it. The modem is properly
connected to PSTN. And the telephone number of the switch side is available.
4.3 Configuration on the Switch Side
4.3.1 Modem Configuration
Perform the following configuration on the modem directly connected to the switch:
AT&F ----------------------- Restore the factory settings
ATS0=1 ----------------------- Configure to answer automatically after the
first ring
AT&D ----------------------- Ignore DTR signal
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