H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – Login

H3C S7500E Series Ethernet Switches Chapter 4 Logging In Using Modem

4-3

I. Configuration on switch when the authentication mode is none

Refer to Console Port Login Configuration with Authentication Mode Being None.

II. Configuration on switch when the authentication mode is password

Refer to Console Port Login Configuration with Authentication Mode Being Password.

III. Configuration on switch when the authentication mode is scheme

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

4.4 Modem Connection Establishment

Step 1: Configure the user name and password on the switch. Refer to Console Port

, Console Port Login

Configuration with Authentication Mode Being Password

, and Console Port Login

Configuration with Authentication Mode Being Scheme

for more.

Step 2: 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

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.

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