I reiterate: What we need is for ISPs to block packets originating from their network that that don't have correct return IP addresses;
Imho, in the case of an UDP RDDoS, it seems unfeasable to me. In a nowaday common ISP, networks are very very intricated and the cost to decide for each datagram if we've a valid OIP is far too heavy, and that's maybe impossible if not dangerous with a living network.
This is more of a loss of instrument data problem.
FYI, there is always, as a backup, conventional (non electronic) flight instruments on longhauls. Always.
The talent of this man has a major part in what has made our world today.
His contribution was essential and it is perceptible throughout the world today.
He deserves all the honors, if not more, than a talented salesman gadget.
Paix à ta mémoire, l'ami. Ce soir j'arroserai dignement ton départ.
"Ninety percent of baseball is half mental." -- Yogi Berra