"Everyone should be deploying BCP 38! Wait, they are ...."

James Milko jmilko at bandwidth.com
Tue Feb 18 19:19:34 UTC 2014

Is using data from a self-selected group even meaningful when
extrapolated?  It's been a while since Stats in college, and it's very
likely the guys from MIT know more than I do, but one of the big things
they pushed was random sampling.


On Tue, Feb 18, 2014 at 2:11 PM, Larry Sheldon <LarrySheldon at cox.net> wrote:

> On 2/18/2014 11:20 AM, Jay Ashworth wrote:
>> Here's a piece which uses the MIT ANA data to assert that the job is
>> mostly done already.
>> Unless I'm very much mistaken, it appears that a large percentage of
>> the failed BCP 38 spoofing tests listed in that data are actually due
>> to customer side NAT routers dropping packets...
>> which is of course egress filtering rather than ingress filtering,
>> and thus doesn't actually apply to our questions.
>> Am I interpreting that correctly?
> The date seems a little past "buy by" in light of the very recent
> observations and comments here.
>  http://www.senki.org/everyone-should-be-deploying-bcp-38-wait-they-are/
> --
> Requiescas in pace o email           Two identifying characteristics
>                                         of System Administrators:
> Ex turpi causa non oritur actio      Infallibility, and the ability to
>                                         learn from their mistakes.
>                                           (Adapted from Stephen Pinker)

More information about the NANOG mailing list