[ 252.219853][ C2] TCP: AO hash mismatch for [2001:db8:1::1].43682->[2001:db8:254::1].7013 [P.]L3index: 0 [ 252.733435][ C0] TCP: AO hash mismatch for [2001:db8:1::1].43682->[2001:db8:254::1].7013 [.]L3index: 0 [ 253.755911][ C0] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].48822 [P.]L3index: 0 [ 253.756268][ C1] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].48822 [.]L3index: 0 [ 255.741828][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 10.0.254.1:7010. Sending cookies.