[ 242.134496][ C0] net_ratelimit: 3 callbacks suppressed [ 242.134503][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 242.474935][ C1] TCP: AO hash mismatch for 10.0.1.1.53472->10.0.254.1.7011 [P.] L3index: 0 [ 242.475530][ C3] TCP: AO hash mismatch for 10.0.254.1.7011->10.0.1.1.53472 [P.] L3index: 0