How do VPN statistics work
Each defguard gateway reads kernel data from the WireGuard® interface for each peer.
If any change is detected between previous stats (bytes in/out) then through the gRPC interface the gateway sends those statistics to defguard core.
Core stores all the data send trough gRPC in the database (table
wireguard_peer_stats
).Then when displaying the VPN overview does all the calculations and aggregations of the data to display them.
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