question about AS relationship

Christopher Morrow morrowc.lists at
Thu Feb 20 18:09:35 UTC 2014

On Thu, Feb 20, 2014 at 3:14 AM, Song Li <refresh.lsong at> wrote:
> Hi everyone,
> I have one simple question: as for AS relationship, should customer tell its
> provider the AS# of its own customers, or the provider have the right to
> require its customers to do that?

in an ideal world the ISP is filtering prefixes from their customer,
which means that the customer has to disclose downstream information.

so, yes. pleass tell your upstream your customers so proper filtering
can be automated and implemented.

don't turn up bgp customers without filtering, that kills kittens.


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