[ 244.337680][ C2] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 244.522724][ C2] TCP: AO hash mismatch for [2001:db8:1::1].41958->[2001:db8:254::1].7011 [P.]L3index: 0 [ 244.522754][ C0] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].41958 [P.]L3index: 0 [ 245.546676][ C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].38416 [P.]L3index: 0 [ 245.547623][ C1] TCP: AO hash mismatch for [2001:db8:1::1].38416->[2001:db8:254::1].7012 [P.]L3index: 0