[  252.754832][    C1] net_ratelimit: 4 callbacks suppressed
[  252.754845][    C1] TCP: AO hash mismatch for [2001:db8:1::1].57150->[2001:db8:254::1].7011 [P.]L3index: 0
[  252.755530][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].57150 [P.]L3index: 0
[  253.778548][    C2] TCP: AO hash mismatch for [2001:db8:1::1].47084->[2001:db8:254::1].7012 [P.]L3index: 0
[  253.780051][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].47084 [P.]L3index: 0
[  254.393906][    C0] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  254.802781][    C0] TCP: AO hash mismatch for [2001:db8:1::1].43600->[2001:db8:254::1].7013 [P.]L3index: 0
[  254.803464][    C1] TCP: AO hash mismatch for [2001:db8:1::1].43600->[2001:db8:254::1].7013 [.]L3index: 0