[  244.721277][    C1] TCP: AO hash mismatch for [2001:db8:1::1].37812->[2001:db8:254::1].7013 [P.]L3index: 0
[  244.721761][    C2] TCP: AO hash mismatch for [2001:db8:1::1].37812->[2001:db8:254::1].7013 [.]L3index: 0
[  245.745963][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].51642 [P.]L3index: 0
[  245.747474][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].51642 [.]L3index: 0
[  247.654647][    C0] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.