[  246.581675][    C0] net_ratelimit: 3 callbacks suppressed
[  246.581682][    C0] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies.
[  247.108420][    C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].44818 [P.]L3index: 0
[  247.108419][    C1] TCP: AO hash mismatch for [2001:db8:1::1].44818->[2001:db8:254::1].7011 [P.]L3index: 0