On 16 Oct 2015, at 13:15, Paul Hoffman wrote:

On 16 Oct 2015, at 10:07, Darcy Kevin (FCA) wrote:

Let's see, millions of full-service resolvers, times the packet-count differential between UDP and TCP, times the average reload/restart frequency of those full-service resolvers per day/week/month. Can't a case be made from sheer volume?

The root operators have shown no concern about legitimate resolvers asking a lot more queries. Given that using TCP for priming helps mitigate an injection attack,

Have we characterised this attack at all?

We're talking principally about a risk to resolvers that prime but don't validate, right?


Joe

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