Question about mismatch of origin ASN in parent and more specific route object

Wed Sep 18 22:34:52 UTC 2019

Hello everyone

Trying to understand the case from operators here who generate IRR based
filters.

Say if a given example:

AS X originating 2001:DB8::/32 with IRR route object having AS X in the
origin
AS X originating 2001:DB8::/48 with IRR route object having AS Y in the
origin

Now for folks who are generating filters, will your tools filter
2001:DB8::/48 because there's a more specific IRR route object which says
AS Y while prefix is coming from AS X?
Or since generation is based on ASNs (as known directly or resolved via AS
SETs) your tools will just generate filter for AS X allowing 2001:DB8::/32
(upto say /48) and won't really for mismatching route object for
2001:DB8::/48?

Thanks.

-- 

Anurag Bhatia
anuragbhatia.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.nanog.org/pipermail/nanog/attachments/20190919/06da3a69/attachment.html>