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4 modem connection establishment, 4 modem connection establishment -3 – H3C Technologies H3C S3100 Series Switches User Manual

Page 73

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Operation Manual – Login

H3C S3100-52P Ethernet Switch

Chapter 4 Logging in Using Modem

4-3

III. Configuration on switch when the authentication mode is scheme

Refer to section 2.6 Console Port Login Configuration with Authentication Mode Being
Scheme”.

4.4 Modem Connection Establishment

1) Before using Modem to log in the switch, perform corresponding configuration for

different authentication modes on the switch. Refer to section 2.4 "Console Port
Login Configuration with Authentication Mode Being None”,
section 2.5 “Console
Port Login Configuration with Authentication Mode Being Password”, and se
ction
2.6 Console Port Login Configuration with Authentication Mode Being Scheme”
for more.

2) Perform the following configuration to 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

AT&K0

----------------------- Disable flow control

AT&R1

----------------------- Ignore RTS signal

AT&S0

----------------------- Set DSR to high level by force

ATEQ1&W

----------------------- Disable the modem from returning command

response and the result, save the changes

You can verify your configuration by executing the AT&V command.

Note:

z

The configuration commands and the output of different modems may differ. Refer
to the user manual of the modem when performing the above configuration.

z

It is recommended that the baud rate of the AUX port (also the Console port) be set
to a value lower than the transmission speed of the modem. Otherwise, packets
may get lost.


3) Connect your PC, the modems, and the switch, as shown in the following figure.