[ 256.625871][ C2] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 257.327342][ C1] TCP: AO hash mismatch for 10.0.1.1.43186->10.0.254.1.7011 [P.] L3index: 0 [ 257.327795][ C0] TCP: AO hash mismatch for 10.0.254.1.7011->10.0.1.1.43186 [P.] L3index: 0