[ 249.661858][ C3] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].48614 [P.]L3index: 0 [ 249.662220][ C0] TCP: AO hash mismatch for [2001:db8:1::1].48614->[2001:db8:254::1].7011 [P.]L3index: 0 [ 250.179790][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 10.0.254.1:7010. Sending cookies. [ 250.686028][ C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].49538 [P.]L3index: 0 [ 250.686257][ C0] TCP: AO hash mismatch for [2001:db8:1::1].49538->[2001:db8:254::1].7012 [P.]L3index: 0