[ 219.926706][ C1] TCP: AO hash mismatch for [2001:db8:1::1].42296->[2001:db8:254::1].7013 [FP.]L3index: 0 [ 219.927706][ C2] TCP: AO hash mismatch for [2001:db8:1::1].42296->[2001:db8:254::1].7013 [.]L3index: 0 [ 220.950839][ C2] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].55418 [FP.]L3index: 0 [ 220.951522][ C1] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].55418 [.]L3index: 0 [ 222.830930][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 10.0.254.1:7010. Sending cookies.