I've got a secondary WAN connection set up to run over a metered LTE connection which in theory should work OK because the primary virtually never goes down and so the billable fallback gets next to no use. However the LTE router reports about 20MB of daily traffic through it, split roughly 50:50 up and down. I'm guessing this is the Firewalla performing connectivity tests and similar things.
Is there any way to disable this to avoid running up unnecessary data charges on the secondary WAN? Something like Windows where you can mark it as a metered connection and so no traffic is put across it except on demand, which for this case would be when failover occurs? At the moment I'm being charged for a link that shouldn't be seeing any traffic because of what I assume is Firewalla test traffic.
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