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Comment on How do I monitor tunnel traffic with a Packet Filter Provider ?
I've found that completely uninstalling and reinstalling the system extension allows us to provide a flow verdict for existing connections. This is most likely because when installing a new system extension is temporarily causes network outage and requires all existing connections to attempt to reconnect. So in this case "existing" is a misnomer. Uninstalling and re-installing is a no-go since it causes UI popups. In my testing, it seems to only way to provide a verdict for existing connections is to force all existing connections to re-connect by forcing a network outage, thereby allowing us to place a verdict on these "new" connections. Please can you confirm there is no better approach for allowing an NEFilter to provide a verdict on existing connections, when these connects are going down a VPN tunnel ?
Oct ’21