8-5
Solution
z
If the “Data bits” field is set to 5 or 6 in the emulation grogram, illegible characters appear on the
screen. Set this field to the default value 8.
z
Check that the current baud setting is 9600 bps. An incorrect baud setting can cause illegible
characters.
z
Make sure that the work mode of the AUX port is flow when using the AUX port as the backup
console port. For more information, refer to "Using the AUX Port as Backup Console Port” on page
8-5.
Serial Port Response Failure
Symptom
The serial port gives no response.
Solution
Check that the cable is in good condition and the serial port settings are correct.
For more information about serial interface settings, refer to the section talking about modifying serial
interface parameters in Chapter 6 “Maintaining Software.”
Using the AUX Port as Backup Console Port
When the console port is faulty, you can use the AUX port as the backup console port to complete
firewall configuration as follows:
1) Make sure that the work mode of the AUX port is flow.
2) Power off the firewall, connect the RJ-45 connector of the console cable to the AUX port, and then
connect the DB-9 (female) connector to the serial port of the configuration terminal.
3) Power on the firewall.
z
Username and password are required for AUX port login and the user level should be specified.
z
The AUX port can work in the flow or protocol mode. The AUX port can be used as the backup
console port only when it works in the flow mode.
z
The AUX port works in the flow mode by default.
z
Use the
async mod
{
flow
|
protocol
} command to switch between the flow mode and the
protocol mode. For more information, refer to
H3C SecPath Series Security Products User
Manual
.
