[ 243.008233][ C1] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].34478 [FP.]L3index: 0 [ 243.009315][ C3] TCP: AO hash mismatch for [2001:db8:1::1].34478->[2001:db8:254::1].7011 [FP.]L3index: 0 [ 244.032178][ C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].49116 [FP.]L3index: 0 [ 244.032180][ C3] TCP: AO hash mismatch for [2001:db8:1::1].49116->[2001:db8:254::1].7012 [FP.]L3index: 0 [ 244.453141][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 245.056243][ C2] TCP: AO hash mismatch for [2001:db8:1::1].40194->[2001:db8:254::1].7013 [FP.]L3index: 0 [ 245.056800][ C1] TCP: AO hash mismatch for [2001:db8:1::1].40194->[2001:db8:254::1].7013 [.]L3index: 0