[  234.798650][    C2] TCP: AO hash mismatch for [2001:db8:1::1].59926->[2001:db8:254::1].7011 [FP.]L3index: 0
[  235.310704][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].59926 [FP.]L3index: 0
[  235.822569][    C2] TCP: AO hash mismatch for [2001:db8:1::1].58604->[2001:db8:254::1].7012 [FP.]L3index: 0
[  236.070681][    C0] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  236.334552][    C3] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].58604 [FP.]L3index: 0