[  396.977683] tun0: no available key for peer 1, key-id: 0
[  396.990758] tun0: no available key for peer 2, key-id: 0
[  397.003861] tun0: no available key for peer 3, key-id: 0
[  397.016587] tun0: no available key for peer 4, key-id: 0
[  401.486244] iperf3 (9978) used greatest stack depth: 11832 bytes left
[  401.586608] tun1: deleting peer with id 10, reason 4
[  401.586616] tun5: deleting peer with id 14, reason 4
[  401.586617] tun3: deleting peer with id 12, reason 4
[  401.586632] tun6: deleting peer with id 15, reason 4
[  401.586668] tun4: deleting peer with id 13, reason 4
[  401.586681] tun2: deleting peer with id 11, reason 4
[  401.587145] tun0: deleting peer with id 6, reason 4
[  401.590963] tun0: deleting peer with id 5, reason 4
[  401.596942] tun0: deleting peer with id 4, reason 4
[  401.604994] tun0: deleting peer with id 3, reason 4
[  401.613938] tun0: deleting peer with id 2, reason 4
[  401.620929] tun0: deleting peer with id 1, reason 4