NA342 Series Network Appliance U
ser’s Manual
LAN Bypass Configuration
37
APPENDIX A
LAN BYPASS CONFIGURATION
About LAN Bypass
In network security application, it is very important to ensure that network traffic to continue
passing through the device even if hardware failure occurs or operating system crashes. LAN
bypass gives us a solution for this problem.
The NA342 series Lan bypass function is very flexible. It can be selected at any time and
any stage. You can enable LAN bypass for power on state by jumper, BIOS, or by software
program when entering into the OS. Moreover, for power off state, you can set up LAN
Bypass through BIOS, or use software program when entering into the OS. If you don’t do
any change, the state will keep the previous power off state.
The NA342 series have LAN bypass capability with the special designed latch relay circuitry.
When LAN bypass function is enabled, a relay closes to act as a bridge to route network data
flow between LAN port 3 and LAN port 4. The bypass feature can be activated immediately or
according to timer which is configurable from 1 up to 64 seconds. You can write a software
program to control bypass operation behavior to fit your requirement.
NOTE:
If you need sample codes please contact our FAE directly, and they are for
reference purposes only.
