[  238.393304][    C3] TCP: AO hash mismatch for [2001:db8:1::1].43212->[2001:db8:254::1].7011 [FP.]L3index: 0
[  238.905518][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].43212 [FP.]L3index: 0
[  239.417418][    C0] TCP: AO hash mismatch for [2001:db8:1::1].56372->[2001:db8:254::1].7012 [FP.]L3index: 0
[  239.929135][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].56372 [FP.]L3index: 0
[  240.323183][    C2] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  241.977421][    C1] net_ratelimit: 2 callbacks suppressed
[  241.977749][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].39390 [FP.]L3index: 0
[  241.978076][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].39390 [.]L3index: 0