Re: Partial Use Of one Regions IP Block in another

[Andy Davidson <andy () nosignal org>]

On 20 May 2010, at 13:06, Net wrote:

> Are there any policies set by internet registries and/or transit providers today that prohibits organizations from 
> using a Partially used IP Block allocated in one region say AP through APNIC to be comissioned and Propagated in 
> another region such as EMEA serviced by RIPE?.

In some circumstances, deaggregation of your rir-assigned prefix might lead to partial reachability (some networks 
filter on rir minimum assignment sizes - not a problem in itself, but some unclever networks exist, that don't 
additionally take a default).

Whatever you announce, make sure it's irr registered too, for the networks who transit or peer with you, who 
automatically build pfx filters.

Happy weekend,
Andy