Advanced Platform Features; Intrusion Detection; Watchdog; Lan Bypass - Advantech FWA-3260 User Manual

2.5

Advanced Platform features

The FWA-3260 does not support intrusion detection by default. This feature has been
reserved in the motherboard design, though, and can be enabled at system level via
customization. Please contact your Advantech representative should you be interested in
this option.
The FWA-3260 provides a programmable watchdog that may be used to reset the system in
case it bites due to malfunctioning application software to restore the unit to a known good
state. The watchdog is based on H/W monitor 7904D timer. The watchdog timer is
supported under Linux via a kernel driver. Please refer to Linux documentation in details.
For a detailed description of the LAN Bypass functionality and the related software API,
please refer to the Advanced LAN Bypass User's Manual.
LAN bypass allows automated or manual control of the connectivity between two LAN ports
grouped into a bypass segment and the host:

Figure 20: Connectivity options of LAN ports in a bypass segment

In "connect" mode, the ports on a segment are connected to the host via NICs. Traffic will
enter and leave the ports just like on a regular NIC.
In "disconnect" mode, the ports are disconnected from the host and from each other. No
traffic can flow through the ports
In "bypass" mode, the two ports are disconnected from the host, but connected to each
other. Traffic entering the system on one port will be sent out on the other port and vice
versa.
"Bypass mode" is used to allow traffic to flow through the system when the system is in a
non operational state such as loss of power or in case the application is unresponsive.
Application health is monitored by a configurable watchdog.
"Disconnect" mode is typically used to block any traffic until the system has fully started up
and the application SW is in a well defined state allowing to handle traffic properly.
Connectivity can be auto controlled by a number of system events:
_20160302.docx
FWA-3260 User Manual v02
2.5.1

Intrusion detection

2.5.2

Watchdog

2.5.3

LAN Bypass

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