[  244.292223][    C3] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  244.550313][    C1] TCP: AO hash mismatch for [2001:db8:1::1].36132->[2001:db8:254::1].7011 [FP.]L3index: 0
[  245.062004][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].36132 [FP.]L3index: 0