[  255.816342][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].40312 [P.]L3index: 0
[  255.816638][    C0] TCP: AO hash mismatch for [2001:db8:1::1].40312->[2001:db8:254::1].7011 [P.]L3index: 0
[  256.520513][    C1] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  256.840357][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].39476 [P.]L3index: 0
[  256.840549][    C3] TCP: AO hash mismatch for [2001:db8:1::1].39476->[2001:db8:254::1].7012 [P.]L3index: 0