Billion BEC MX-1000 User Manual page 78

Load Balance
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WAN Port Service Detection Policy
WAN1: Select "4G LTE 1", "4G LTE 2" or "EWAN" for WAN1 (The main WAN).
WAN2: Select the "4G LTE 2" or "EWAN" for WAN2 as backup port if you select "4G LTE 1" as WAN1.
Service Detection: Select if to keep detecte WAN interface connected.
Connectivity Decision: Set how many times of probing failure to disable load balance.
Probe WAN 1/2: Choose the probe policy, to probe gateway or host (users decide themselves)
 Gateway: It will send ping packets to gateway of Wan1 interface and wait for response from it in
every "Probe Cycle" to check the connectivity of the gateway of WAN1 interface.
 Host: It will send ping packets to specific host and wait for response in every "Probe Cycle".
The host must be an IP address.