[  254.838651][    C2] TCP: AO hash mismatch for [2001:db8:1::1].41188->[2001:db8:254::1].7011 [P.]L3index: 0
[  254.839786][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].41188 [P.]L3index: 0
[  255.821034][    C1] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  255.862845][    C0] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].47848 [P.]L3index: 0
[  255.864244][    C1] TCP: AO hash mismatch for [2001:db8:1::1].47848->[2001:db8:254::1].7012 [P.]L3index: 0
[  256.888842][    C3] TCP: AO hash mismatch for [2001:db8:1::1].53230->[2001:db8:254::1].7013 [P.]L3index: 0