[  421.888980] tun0: no available key for peer 1, key-id: 0
[  427.306693] iperf3 (6647) used greatest stack depth: 12008 bytes left
[  427.393851] tun1: deleting peer with id 10, reason 4
[  427.393853] tun3: deleting peer with id 12, reason 4
[  427.393914] tun5: deleting peer with id 14, reason 4
[  427.394076] tun6: deleting peer with id 15, reason 4
[  427.394165] tun4: deleting peer with id 13, reason 4
[  427.394281] tun0: deleting peer with id 6, reason 4
[  427.394436] tun2: deleting peer with id 11, reason 4
[  427.400054] tun0: deleting peer with id 5, reason 4
[  427.400160] tun0: TCP error to peer 1: -32
[  427.400421] tun0: deleting peer with id 1, reason 3
[  427.404047] tun0: deleting peer with id 4, reason 4
[  427.412042] tun0: deleting peer with id 3, reason 4
[  427.417045] tun0: deleting peer with id 2, reason 4