[  251.183364][    C2] TCP: AO hash mismatch for [2001:db8:1::1].43980->[2001:db8:254::1].7011 [P.]L3index: 0
[  251.694967][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].43980 [P.]L3index: 0
[  251.820509][    C1] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  252.207624][    C2] TCP: AO hash mismatch for [2001:db8:1::1].47506->[2001:db8:254::1].7012 [P.]L3index: 0
[  252.719031][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].47506 [P.]L3index: 0
[  253.231308][    C1] TCP: AO hash mismatch for [2001:db8:1::1].40294->[2001:db8:254::1].7013 [P.]L3index: 0
[  253.231938][    C2] TCP: AO hash mismatch for [2001:db8:1::1].40294->[2001:db8:254::1].7013 [.]L3index: 0