[102709] in North American Network Operators' Group
Re: YouTube IP Hijacking
daemon@ATHENA.MIT.EDU (Matsuzaki Yoshinobu)
Mon Feb 25 04:39:46 2008
Date: Mon, 25 Feb 2008 18:17:05 +0900 (JST)
To: nanog@merit.edu
From: Matsuzaki Yoshinobu <maz@iij.ad.jp>
In-Reply-To: <DC193A63-8FC7-4047-9854-CAB81FE57A70@ianai.net>
Errors-To: owner-nanog@merit.edu
"Patrick W. Gilmore" <patrick@ianai.net> wrote
> On Feb 25, 2008, at 2:27 AM, Hank Nussbacher wrote:
> > At 07:15 PM 24-02-08 -0500, Randy Epstein wrote:
> >
> >> More importantly, why is PCCW not prefix filtering their downstreams?
> >
> > Why?
> >
> > - Lack of clue
> > - Couldn't care less
> > - No revenue
> >
> > Take your pick - or add your own reason. PCCW is not alone. They
> > just happen to be the latest in a long line of ISPs that follow the
> > same rules - their own.
>
> All good, er, bad reasons. Fixing the "filter your downstreams"
> problem is very important. It would also solve 90-something percent
> of the problems mentioned in this thread. E.g. as7007. :)
I am in the APRICOT meeting in Taipei now, and met a guy from
PCCW/AS3491. I have showed him this thread, and have suggested
1) validating prefixes from downstreams before accept, and
2) setting an inbound prefix-filter to their downstreams.
regards,
-----
Matsuzaki Yoshinobu <maz@iij.ad.jp>
- IIJ/AS2497 INOC-DBA: 2497*629
