[  242.990053][    C2] net_ratelimit: 4 callbacks suppressed
[  242.990059][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].40752 [P.]L3index: 0
[  243.502164][    C2] TCP: AO hash mismatch for [2001:db8:1::1].47380->[2001:db8:254::1].7012 [P.]L3index: 0
[  244.014904][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].47380 [P.]L3index: 0
[  245.038500][    C2] TCP: AO hash mismatch for [2001:db8:1::1].50606->[2001:db8:254::1].7013 [P.]L3index: 0
[  245.039142][    C1] TCP: AO hash mismatch for [2001:db8:1::1].50606->[2001:db8:254::1].7013 [.]L3index: 0
[  246.062586][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].35874 [P.]L3index: 0
[  246.063130][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].35874 [.]L3index: 0
[  246.097389][    C2] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.