[ 87.340446] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 87.736912] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].51414 [P.]L3index: 0 [ 87.736918] TCP: AO hash mismatch for [2001:db8:1::1].51414->[2001:db8:254::1].7012 [P.]L3index: 0