[  239.090253][    C0] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  239.401333][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].33316 [P.]L3index: 0
[  239.401601][    C3] TCP: AO hash mismatch for [2001:db8:1::1].33316->[2001:db8:254::1].7011 [P.]L3index: 0
[  240.425822][    C1] TCP: AO hash mismatch for [2001:db8:1::1].60054->[2001:db8:254::1].7012 [P.]L3index: 0
[  240.426595][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].60054 [P.]L3index: 0