BGP prefix filtering, how exactly? [Re: YouTube IP Hijacking]
Randy Epstein
repstein at chello.at
Tue Feb 26 00:46:45 UTC 2008
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
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