[ 241.858729][ C2] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].39700 [FP.]L3index: 0 [ 244.753867][ C3] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.