"Patrick W. Gilmore" <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> - IIJ/AS2497 INOC-DBA: 2497*629