[  399.900188] tun0: no available key for peer 1, key-id: 0
[  399.912972] tun0: no available key for peer 2, key-id: 0
[  399.925701] tun0: no available key for peer 3, key-id: 0
[  399.938521] tun0: no available key for peer 4, key-id: 0
[  404.396587] iperf3 (9981) used greatest stack depth: 11832 bytes left
[  404.570967] tun1: deleting peer with id 10, reason 4
[  404.571116] tun3: deleting peer with id 12, reason 4
[  404.571118] tun4: deleting peer with id 13, reason 4
[  404.571247] tun0: deleting peer with id 6, reason 4
[  404.571251] tun2: deleting peer with id 11, reason 4
[  404.571280] tun5: deleting peer with id 14, reason 4
[  404.571318] tun6: deleting peer with id 15, reason 4
[  404.578847] tun0: deleting peer with id 5, reason 4
[  404.583827] tun0: deleting peer with id 4, reason 4
[  404.598827] tun0: deleting peer with id 3, reason 4
[  404.605849] tun0: deleting peer with id 2, reason 4
[  404.616823] tun0: deleting peer with id 1, reason 4