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Transparent failover to an alternate broadband network
IM/IMG4200 gateways offer broadband failover so in the event of a disruption to the main management network connection, access is switched transparently to the standby network connection.
To set this up, when configuring the principal Network 1 (eth0) connection, specify Network 2 (eth1) as the Failover Interface to be used when a fault has been detected with Network 1 (eth0). Then specify the Probe Addresses of two sites (the Primary and Secondary) that the IM4200 is to ping to determine if Network 1 (eth0) is still operational.
Then configure Network 2 Settings (eth1) with the same IP setting that you used for Network 1 (eth0) to ensure transparent redundancy.
In this mode, Network 2 (eth1) is available as the transparent back-up port to Network 1 (eth0) for accessing the management network. Network 2 (eth1) will automatically and transparently take over the work of Network 1 (eth0), in the event Network 1 (eth0) becomes unavailable for any reason. And when Network 1 (eth0) becomes available again, it takes over the work again.
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