[  219.426741][    C0] net_ratelimit: 3 callbacks suppressed
[  219.426751][    C0] TCP: AO hash mismatch for [2001:db8:1::1].55668->[2001:db8:254::1].7011 [FP.]L3index: 0
[  219.427210][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].55668 [FP.]L3index: 0
[  219.635696][    C1] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  220.450430][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].54006 [FP.]L3index: 0
[  220.450471][    C0] TCP: AO hash mismatch for [2001:db8:1::1].54006->[2001:db8:254::1].7012 [FP.]L3index: 0