Danny,

Certainly one to add to the use-cases material.

Off the top of my head, from my interpretation the IX operator (presumably
who does not have an ASN) would issue a ROA for each and every IX
participant's AS to announce the IX prefix from the customer AS.

If the IX does have an AS, the might like to announce from their own AS and
then perhaps attempt to control route distribution. Meaning they would
create a ROA for their own prefix.

If the IX does not participate in RPKI, the prefix can be announced by
anyone with any origin, and distributed as far and wide as filters will
allow.

(even in the face of any RIR 'rules' about advertising of IX prefixes)

Terry


On 30/07/09 1:44 AM, "Danny McPherson" <[email protected]> wrote:

> 
> 
> Folks,
> Wondering if anyone has given thought to how exchange
> point prefixes will be handled in the RPKI model?  As
> you likely know, many ISPs originate and announce these
> prefixes from their own AS, and use not only internally,
> but usually advertise to "customer peers", in order to
> not break uRPF related stuff, and allow reachability for
> diagnostics and the like by downstream ASN, etc..
> 
> How would this be accommodated with the current model?
> 
> -danny
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