[ 257.380718][ C2] TCP: AO hash mismatch for [2001:db8:1::1].47772->[2001:db8:254::1].7013 [P.]L3index: 0 [ 257.383170][ C3] TCP: AO hash mismatch for [2001:db8:1::1].47772->[2001:db8:254::1].7013 [.]L3index: 0 [ 258.405786][ C3] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].47002 [P.]L3index: 0 [ 258.406332][ C1] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].47002 [.]L3index: 0 [ 260.587832][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 10.0.254.1:7010. Sending cookies.