Advertising rented IPv4 prefix from a different ASN.

Fri Aug 5 13:40:24 UTC 2016

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.

Regards,
Neo Soon Keat

2016-08-05 3:39 GMT+08:00 Andrew <andrew at vianet.ca>:

> Hello List,
>
> I work for a medium sized ISP.  We are entering an agreement to rent some
> IPv4 space from a local higher education institution.  Being a multi-homed
> ISP we would like to advertise the rented prefix from our ASN.  The prefix
> that will be advertised is a smaller subnet from the higher educations
> block; they will continue to advertise the larger prefix.
>
> What is the best way to accomplish this?  Is there any way of doing this
> without having to tunnel the traffic through the origin ASN?
>
> I feel if we just adverse the prefix it get put on a bogon list for prefix
> hijacking.  This space is rented long term but they are not interested in
> reassigning the space to us.  They also want to keep advertising their
> prefix as one contiguous block.
>
> I appreciate any insight and information.
> Thank you for your time,
> Andrew.
>