[  398.781673] tun0: no available key for peer 1, key-id: 0
[  398.792708] tun0: no available key for peer 2, key-id: 0
[  398.803883] tun0: no available key for peer 3, key-id: 0
[  398.814929] tun0: no available key for peer 4, key-id: 0
[  403.284386] iperf3 (9827) used greatest stack depth: 11744 bytes left
[  403.417351] tun4: deleting peer with id 13, reason 4
[  403.417351] tun6: deleting peer with id 15, reason 4
[  403.417368] tun5: deleting peer with id 14, reason 4
[  403.417379] tun3: deleting peer with id 12, reason 4
[  403.417394] tun1: deleting peer with id 10, reason 4
[  403.417603] tun2: deleting peer with id 11, reason 4
[  403.417688] tun0: deleting peer with id 6, reason 4
[  403.421952] tun0: deleting peer with id 5, reason 4
[  403.430953] tun0: deleting peer with id 4, reason 4
[  403.437953] tun0: deleting peer with id 3, reason 4
[  403.450944] tun0: deleting peer with id 2, reason 4
[  403.452971] tun0: deleting peer with id 1, reason 4