YouTube IP Hijacking

Mon Feb 25 09:17:05 UTC 2008

"Patrick W. Gilmore" <patrick at 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 at iij.ad.jp>
 - IIJ/AS2497  INOC-DBA: 2497*629