[ 257.335380][ C0] TCP: AO hash mismatch for [2001:db8:1::1].39090->[2001:db8:254::1].7011 [P.]L3index: 0 [ 257.336133][ C0] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].39090 [P.]L3index: 0 [ 258.359456][ C3] TCP: AO hash mismatch for [2001:db8:1::1].50806->[2001:db8:254::1].7012 [P.]L3index: 0 [ 258.360091][ C3] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].50806 [P.]L3index: 0 [ 258.960317][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 10.0.254.1:7010. Sending cookies.