Advertising rented IPv4 prefix from a different ASN.

Theodore Baschak theodore at
Fri Aug 5 16:04:22 UTC 2016

> On Aug 5, 2016, at 8:52 AM, Mark Tinka <mark.tinka at> wrote:
> On 5/Aug/16 15:40, Soon Keat Neo wrote:
>> If you are just announcing more specific address space that you've obtained
>> legitimately off their assigned address space, it should be no problem,
>> just obtain an LoA and register it on the different databases and you
>> should be set to ask your upstreams to allow the announcements.
> Do people actually do this? A customer asked us to do this for them and
> we refused, because inconsistent AS has never been a thing.
> I'm apprehensive about a subnet and its aggregate appearing from
> multiple AS's at the same time. But, I'm old school, so...
> Mark.

Yes, this is quite prevalent. For example a popular resolver within prefix (and also has advertised by 3356.

Theodore Baschak - AS395089 - Hextet Systems - -

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