[  256.819166][    C0] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].36646 [P.]L3index: 0
[  256.819937][    C2] TCP: AO hash mismatch for [2001:db8:1::1].36646->[2001:db8:254::1].7011 [P.]L3index: 0
[  257.230364][    C1] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  257.843202][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].45826 [P.]L3index: 0
[  257.843205][    C2] TCP: AO hash mismatch for [2001:db8:1::1].45826->[2001:db8:254::1].7012 [P.]L3index: 0