[  252.221204][    C0] TCP: AO hash mismatch for [2001:db8:1::1].37020->[2001:db8:254::1].7011 [P.]L3index: 0
[  252.221301][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].37020 [P.]L3index: 0
[  252.864418][    C2] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  253.757935][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].55274 [P.]L3index: 0
[  253.758758][    C1] TCP: AO hash mismatch for [2001:db8:1::1].55274->[2001:db8:254::1].7012 [P.]L3index: 0