ARIN-PPML Message

[arin-ppml] Update for pp149 Improved Transparency for Directed Transfers

On Jun 3, 2011, at 8:20 AM, Brett Frankenberger wrote:

> On Fri, Jun 03, 2011 at 09:57:12AM -0500, Kevin Kargel wrote:
>> 
>> I actually wouldn't mind seeing the source ASN in the data.  The
>> destination ASN is trivial to find so is a non issue.  I don't see
>> why this would be an issue, if an ASN is afraid of anyone noticing
>> they are transferring blocks there is probably a reason for that the
>> community should be aware of anyway.
>> 
>> This is not a deal breaker in any way shape or form and would not
>> affect my support.  Just to satisfy my curiosity.
> 
> ARIN doesn't really have that information.  ARIN allocates IP addresses
> to organizations, not to ASs.  (There are possible hacks.  They could
> assume that an org with one ASN is using that ASN for all its IP space,
> but that's not necessarily always the case, and some orgs have multiple
> ASNs, and so on.)

the routing table is really as authoritative source  as you're likely to get for how a prefix has been used in the dfz internet. an rpsl entry or registry assignment is is only as accurate as the maintainer.

> Historical BGP announcement information is probably the best place to
> get this information.  But expecting ARIN to look that up and provide
> historical announcement information is probably not realistic.

There is some question in my mind as to whether what actually happened reflects the intentions of the organization to which the prefix was assigned or if that's even relevant.

>     -- Brett
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