[  222.721444][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].42234 [FP.]L3index: 0
[  222.721450][    C2] TCP: AO hash mismatch for [2001:db8:1::1].42234->[2001:db8:254::1].7011 [FP.]L3index: 0
[  223.303650][    C2] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  223.745606][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].53594 [FP.]L3index: 0
[  223.745645][    C2] TCP: AO hash mismatch for [2001:db8:1::1].53594->[2001:db8:254::1].7012 [FP.]L3index: 0