Are we really this helpless? (Re: isprime DOS in progress)

Martin Hannigan martin at
Sun Jan 25 01:34:59 UTC 2009

On Sat, Jan 24, 2009 at 8:01 PM, Mark Andrews <Mark_Andrews at> wrote:

> In message <8C5F1FEC-FF51-4BA2-A762-C13BC275E806 at>, David
> Conrad writes:
> > It would seem that as ISPs implement DPI and protocol-specific traffic
> > shaping, they damage the arguments that they can make claiming they
> > have "common carrier" status with the inherent immunities that status
> > provides.  I can hear the argument now: if an ISP can throttle
> > BitTorrent (or whatever) for specific nodes, why can't they also limit
> > the source addresses of packets coming from those nodes?
>         They can and should.  I suspect many of them do as they
>        usually apply these filters to home networks.
>        BCP 38 is ~10 years old now.  It should have been factored
>        into the purchasing decision of all the current equipement.
>        If it wasn't then the operator was negligent.
>        Mark
BCP 38 isn't a license, it's a technique.

Martin Hannigan                               martin at
p: +16178216079

More information about the NANOG mailing list