[  247.269704][    C1] net_ratelimit: 30 callbacks suppressed
[  247.269717][    C1] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  247.526680][    C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].44664 [FP.]L3index: 0
[  247.526719][    C0] TCP: AO hash mismatch for [2001:db8:1::1].44664->[2001:db8:254::1].7012 [FP.]L3index: 0
[  248.614685][    C1] TCP: AO hash mismatch for [2001:db8:1::1].38250->[2001:db8:254::1].7013 [FP.]L3index: 0
[  248.615144][    C2] TCP: AO hash mismatch for [2001:db8:1::1].38250->[2001:db8:254::1].7013 [.]L3index: 0