[ 234.198453][ C3] net_ratelimit: 3 callbacks suppressed [ 234.198465][ C3] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 234.851701][ C0] TCP: AO hash mismatch for 10.0.1.1.55438->10.0.254.1.7011 [FP.] L3index: 0 [ 234.851772][ C3] TCP: AO hash mismatch for 10.0.254.1.7011->10.0.1.1.55438 [FP.] L3index: 0