[ 243.516561][ C2] TCP: AO hash mismatch for [2001:db8:254::1].7011->[2001:db8:1::1].51442 [FP.]L3index: 0 [ 243.517751][ C3] TCP: AO hash mismatch for [2001:db8:1::1].51442->[2001:db8:254::1].7011 [FP.]L3index: 0 [ 244.540585][ C1] TCP: AO hash mismatch for [2001:db8:254::1].7012->[2001:db8:1::1].52302 [FP.]L3index: 0 [ 244.540702][ C2] TCP: AO hash mismatch for [2001:db8:1::1].52302->[2001:db8:254::1].7012 [FP.]L3index: 0 [ 245.312965][ C2] TCP: request_sock_TCPv6: Possible SYN flooding on port [2001:db8:254::1]:7010. Sending cookies. [ 245.565667][ C3] TCP: AO hash mismatch for [2001:db8:1::1].47650->[2001:db8:254::1].7013 [FP.]L3index: 0 [ 245.566515][ C3] TCP: AO hash mismatch for [2001:db8:1::1].47650->[2001:db8:254::1].7013 [.]L3index: 0