[ 247.798909][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 248.155684][ C1] TCP: AO hash mismatch for 10.0.1.1.49174->10.0.254.1.7011 [P.] L3index: 0 [ 248.156166][ C1] TCP: AO hash mismatch for 10.0.254.1.7011->10.0.1.1.49174 [P.] L3index: 0