[  647.086661][    C3] tun0: no available key for peer 1, key-id: 0
[  647.190217][    C2] tun0: no available key for peer 2, key-id: 0
[  647.504989][    C0] tun0: no available key for peer 5, key-id: 0
[  655.810198][ T8907] iperf3 (8907) used greatest stack depth: 22640 bytes left
[  656.013133][ T8778] tun1: deleting peer with id 10, reason 4
[  656.014486][ T8785] tun2: deleting peer with id 11, reason 4
[  656.015266][ T8815] tun0: deleting peer with id 6, reason 4
[  656.018336][ T8792] tun3: deleting peer with id 12, reason 4
[  656.022293][ T8807] tun5: deleting peer with id 14, reason 4
[  656.022305][ T8815] tun0: deleting peer with id 5, reason 4
[  656.022344][ T8800] tun4: deleting peer with id 13, reason 4
[  656.026529][ T8815] tun0: deleting peer with id 4, reason 4
[  656.027107][ T8814] tun6: deleting peer with id 15, reason 4
[  656.035892][ T8815] tun0: deleting peer with id 3, reason 4
[  656.041829][ T8815] tun0: deleting peer with id 2, reason 4
[  656.051806][ T8815] tun0: deleting peer with id 1, reason 4