Installation Manual
H3C SecPath F1000-E Firewall
Chapter 8 Troubleshooting
8-2
8.3 Troubleshooting the Configuration System
If the system runs normally after the firewall is powered on, the booting information is
displayed on the configuration terminal. If the configuration system is faulty, the
terminal screen may display nothing or illegible characters.
8.3.1 No Display on the Terminal Screen
I. Symptom
After the firewall is powered on, the configuration terminal displays nothing.
II. Solution
Check that:
z
The power supply is normal.
z
The console cable is properly connected.
If the cause cannot be located in the steps above, the possible reasons are as follows:
z
The serial port to which the console cable is connected is not the one configured in
the emulation program.
z
Terminal settings are incorrect. The required settings are as follows: 9600 bits per
second, 8 data bits, 1 stop bit, no flow control, and VT100 for terminal emulation
type.
z
The configuration cable is not in good condition.
8.3.2 Illegible Characters on the Terminal Screen
I. Symptom
After the firewall is powered on, the configuration terminal displays illegible characters.
II. Solution
z
If the “Data bits” field is set to 5 or 6 in the emulation program, illegible characters
appear on the screen. Set this field to the default value 8.
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 section 8.4 “Using the
AUX Port as Backup Console Port” on page 8-3.
8.3.3 Serial Port Response Failure
I. Symptom
The serial port gives no response.
