[ 247.592597][ C1] TCP: AO hash mismatch for [2001:db8:1::1].49752->[2001:db8:254::1].7013 [P.]L3index: 0 [ 247.593933][ C3] TCP: AO hash mismatch for [2001:db8:1::1].49752->[2001:db8:254::1].7013 [.]L3index: 0 [ 248.616750][ C2] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].41234 [P.]L3index: 0 [ 248.618067][ C3] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].41234 [.]L3index: 0 [ 250.429745][ C2] TCP: request_sock_TCP: Possible SYN flooding on port 10.0.254.1:7010. Sending cookies.