ietf-mxcomp
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RE: Wide-Open MADRID

2004-06-08 11:20:51

At 9:42 -0700 6/1/04, Greg Connor wrote:
Publishers SHOULD limit the size of the cidr ranges to no larger than the ARIN
netblock corresponding to the ASN it is in.  If the publisher wishes to allow
multiple ASNs to send mail, they should be listed individually.

To add some clarification - ARIN does not have information relating address ranges to AS numbers at the granularity you are probably assuming.

E.g., an organization may have AS numbers 68432 and 72293 and address ranges 298.34.245.0/24 and 312.3.312.0/23. There's no record how the two ranges are mapped to the autonomous systems. If could be the latter range is split among the two AS numbers.
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Edward Lewis                                            +1-703-227-9854
ARIN Research Engineer

Even the voices inside my head are refusing to talk to me anymore.


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