[ 229.640915][ C0] net_ratelimit: 4 callbacks suppressed [ 229.640924][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 230.208688][ C1] TCP: AO hash mismatch for 10.0.254.1.7012->10.0.1.1.40708 [FP.] L3index: 0 [ 230.208805][ C2] TCP: AO hash mismatch for 10.0.1.1.40708->10.0.254.1.7012 [FP.] L3index: 0