[  250.144102][    C2] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  250.729900][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].59268 [P.]L3index: 0
[  250.730204][    C0] TCP: AO hash mismatch for [2001:db8:1::1].59268->[2001:db8:254::1].7011 [P.]L3index: 0