[  237.884127][    C2] TCP: AO hash mismatch for [2001:db8:1::1].39874->[2001:db8:254::1].7011 [FP.]L3index: 0
[  237.884769][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].39874 [FP.]L3index: 0
[  238.907945][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].51724 [FP.]L3index: 0
[  238.908640][    C1] TCP: AO hash mismatch for [2001:db8:1::1].51724->[2001:db8:254::1].7012 [FP.]L3index: 0
[  239.788787][    C1] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  240.955886][    C2] net_ratelimit: 2 callbacks suppressed
[  240.956128][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].34066 [FP.]L3index: 0
[  240.956936][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7014->[2001:db8:1::1].34066 [.]L3index: 0