Mitigating DNS amplification attacks

Dobbins, Roland rdobbins at
Wed May 1 00:45:25 UTC 2013

On May 1, 2013, at 7:42 AM, Thomas St-Pierre wrote:

> As for BCP38, I would love to stop the spoofed packets, however with them coming from our upstreams, (Level3, Cogent, Tata, etc) I don't see how we can.

Contact them on a case-by-case basis to report the spoofed traffic used to stimulate the servers into responding, including the layer-4 classification criteria, traffic rates, and timestamps available via flow telemetry.

Roland Dobbins <rdobbins at> // <>

	  Luck is the residue of opportunity and design.

		       -- John Milton

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