[ 228.659639][ C0] net_ratelimit: 3 callbacks suppressed [ 228.659647][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 229.677798][ C2] TCP: AO hash mismatch for 10.0.1.1.33336->10.0.254.1.7011 [FP.] L3index: 0 [ 229.678336][ C2] TCP: AO hash mismatch for 10.0.254.1.7011->10.0.1.1.33336 [FP.] L3index: 0