Chapter 4:
Firewall, Failover & OOB Access
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In this mode,
Management LAN Interface
is available as the transparent back-up port to
Network
Interface
for accessing the management network.
Management LAN Interface
takes over the work of
Network Interface
in the event
Network Interface
becomes unavailable.
NOTE
SSH and HTTPS access is enabled on the failover connection so an administrator can connect to
the console server and fix the problem.
By default, the console server supports automatic failure-recovery back to the original state prior to
failover (V3.1.0 firmware and later). The console server continually pings probe addresses whilst in
original and failover states. The original state is set as a priority and reestablished following three
successful pings of the probe addresses during failover. The failover state is removed once the original
state has been re-established.
4.6
Cellular Modem Connection
Some models support internal cellular modems. These modems first need to be installed and set up to
validate they can connect to the carrier network They can be configured for operation in Always- on
cellular router or OOB mode or in Failover mode.
4.6.1 Connecting to a
GSM HSUPA/UMTS
carrier network
-G models have an internal GSM modem that connects to any major GSM carrier globally.
1.
Select
Internal Cellular Modem
panel on the
System > Dial
menu
2.
Check
Enable Dial-Out Settings
