NetComm NTC-990 - Manual (Page 34)

8 Advanced Features
This section explains other features that you may want to enable depending on your application. Some
features can add extra stability and error recovery. Other features are available assist with integrating the
router with your application.
8.1 How to configure the Periodic Ping Reset Monitor
This facility is available on the “System Monitor” page.
The Periodic Ping Reset Monitor configures the modem to transmit controlled ping packets to 1 or 2 user
specific IP address, should the router not receive responses to the pings the router will reboot.
This works as follows:-
A. Every “Periodic Ping Timer” seconds the router sends 3 consecutive pings to the
“Destination Address” .
B. If all 3 pings fail the router sends 3 consecutive pings to the “Second Address”.
C. The router then sends 3 consecutive pings to the “Destination Address” and 3 consecutive
pings to the “Second Address” every “Periodic Ping Accelerated Timer” seconds.
D. If all accelerated pings in step D above fail “Fail Count” times the router reboots.
E. If any ping succeeds the router returns to step A and does not reboot.
“Periodic Ping Timer” should never be set to a value less than 60 seconds; this is to allow the router
time to reconnect to the cellular network following a reboot.
To disable the Periodic Ping Reset Monitor simply set to “Fail Count” 0
Revision 1.55 NetComm Limited
March 2009
33