[102745] in North American Network Operators' Group
RE: BGP prefix filtering, how exactly? [Re: YouTube IP Hijacking]
daemon@ATHENA.MIT.EDU (Randy Epstein)
Mon Feb 25 19:55:37 2008
From: "Randy Epstein" <repstein@chello.at>
To: <Valdis.Kletnieks@vt.edu>
Cc: "'Pekka Savola'" <pekkas@netcore.fi>, "'Danny McPherson'" <danny@tcb.net>,
"'NANOG NANOG'" <nanog@merit.edu>
Date: Mon, 25 Feb 2008 19:46:45 -0500
In-Reply-To: <20327.1203977673@turing-police.cc.vt.edu>
Errors-To: owner-nanog@merit.edu
Valdis wrote:
> He explicitly said "single-homed". Of course, multi-homed requires
> different handling, because you may hear their other home announce them
> (although again, you probably shouldn't listen to *THAT* announcement
> either if *your* link to them is up). And I posit that if you don't know
> if your customer is single or multi-homed, you have *bigger* issues to
> deal with.
My bad, I misread his multi-homed comment. From what I understand (and have
seen in practice) PCCW does not listen to their address space from their
peers no matter what the status of the connection to their customer is. I
find this policy flat out flawed.
Randy
