[ 231.202201][ C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].52110 [FP.]L3index: 0 [ 231.202605][ C3] TCP: AO hash mismatch for [2001:db8:1::1].52110->[2001:db8:254::1].7011 [FP.]L3index: 0 [ 232.226323][ C2] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].36164 [FP.]L3index: 0 [ 232.226420][ C1] TCP: AO hash mismatch for [2001:db8:1::1].36164->[2001:db8:254::1].7012 [FP.]L3index: 0 [ 233.065750][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 10.0.254.1:7010. Sending cookies.