module 2 tun¶
split tunneling¶
We see what is a split tunnel and its use cases
full tunneling¶
We see what is a full tunnel and its use cases
non-root users¶
For non-root users we can use the proxy part of sing-box, but for tun use cases we should have root privilege
L3 versus L4 tun interfaces¶
Well known VPNs like OpenVPN, WireGuard operate at layer 3 (tun mode) but sing-box tun interface is not a layer 3 but a layer 4 one