[168762] in North American Network Operators' Group
Re: TWC (AS11351) blocking all NTP?
daemon@ATHENA.MIT.EDU (Jared Mauch)
Tue Feb 4 14:24:47 2014
In-Reply-To: <CAP-guGXXiXutCnsepTH_j4-8W4r-FeeEGGKJJy71PxVF9+VydQ@mail.gmail.com>
From: Jared Mauch <jared@puck.nether.net>
Date: Tue, 4 Feb 2014 14:24:17 -0500
To: William Herrin <bill@herrin.us>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Please let us know your results.=20
Jared Mauch
> On Feb 4, 2014, at 1:55 PM, William Herrin <bill@herrin.us> wrote:
>=20
> On Tue, Feb 4, 2014 at 1:03 PM, Jared Mauch <jared@puck.nether.net> wrote:=
>>>> On Feb 4, 2014, at 11:52 AM, William Herrin <bill@herrin.us> wrote:
>>>> Those that are up in arms about this stuff seem to not be the ones aski=
ng
>>>> the vendors for features and fixes.
>>>=20
>>> Like I said, the "tier 1's" can't be the source of the solution until
>>> they stop being part of the problem.
>>=20
>> This is the attitude that I've seen elsewhere that is devoid of any meat.=
>> As I said before, we hit a big preventing the ability to do this even if
>> we wanted to. The impact is drop all traffic or permit all in that case.
>=20
> Hi Jared,
>=20
> I'm not confident you caught the implications of what I said. At the
> reciprocal peering link, you don't drop the spoofed traffic. You let
> it flow. You then charge a penalty when it turns out the peering
> traffic includes spoofed packets. The impact isn't drop or permit.
> It's dollars. Those who can't or won't control their customer links
> (where they trivially know what addresses are allowed) start to pay
> large amounts of money where they peer. More money than it takes to to
> properly implement customer-link filters so that they don't send
> spoofed packets to the peer.
>=20
> No new tech. No blocking. Just cashflow.
>=20
> Regards,
> Bill Herrin
>=20
>=20
> --=20
> William D. Herrin ................ herrin@dirtside.com bill@herrin.us
> 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
> Falls Church, VA 22042-3004
