3Com Switch 7754, Configuration Manual

Page: 66 / 940

66 C
HAPTER
5: L
OGGING IN
U
SING
M
ODEM
You can verify your configuration by executing the AT&V command.
n
The above configuration is unnecessary to the modem on the administrator side.
The configuration commands and the output of different modems may differ.
Refer to the user manual of the modem when performing the above
configuration.
Switch Configuration
n
After logging into a switch through its Console port by using a modem, you will
enter the AUX user interface. Note the following when you perform the
corresponding configuration on the switch
■
When you log in through the Console port using a modem, the baud rate of
the Console port is usually set to a value lower than the transmission speed of
the modem. Otherwise, packets may get lost.
■
Other settings of the Console port, such as the check mode, the stop bits, and
the data bits, remain the default.
The configuration on the switch depends on the authentication mode the user is
in. Refer to Table 13 for the information about authentication mode configuration.
Configuration on switch when the authentication mode is none
Refer to “Console Port Login Configuration with Authentication Mode Being
None” on page 39.
Configuration on switch when the authentication mode is password
Refer to “Console Port Login Configuration with Authentication Mode Being
Password” on page 42.
Configuration on switch when the authentication mode is scheme
Refer to “Console Port Login Configuration with Authentication Mode Being
Scheme” on page 46.
Modem Connection
Establishment
1 Before using Modem to log in to the switch, perform corresponding configuration
for different authentication modes on the switch. Refer to “Console Port Login
Configuration with Authentication Mode Being None” on page 39, “Console Port
Login Configuration with Authentication Mode Being Password” on page 42, and
“Console Port Login Configuration with Authentication Mode Being Scheme” on
page 46 for more information.
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 af
ter the first ring
AT&D ----------------------- Ignore DTR signal
AT&K0 ----------------------- Disable flow control
AT&R1 ----------------------- Ignore RTS signal