On Wed, 21 Nov 2001, Joe Abley wrote:
There are a few operators who filter on RIR allocation boundaries (Verio is one). However, I would be surprised if 203.0.0.0/10 was treated as anything other than a swamp of /24s, given its history.
But at the most recent IETF in London in August there was a very clear call from the IAB to major providers to start filtering on allocation boundaries. As one of the people heavily involved in the 203.0.0.0/10 swamp I can quite clearly recall that this block was allocated exclusively to Australia but I suspect Joe is right about the historical mess.
I would expect that there would be few problems advertising the kind of prefix you are talking about so long as it doesn't have a mask longer than 24 bits. The person to ask about this is your prospective transit provider in NZ, and also any other operator who currently advertises a supernet route which covers the prefix you want to advertise.
I'd want to ask the question why do you (or the customer) want to do this. There may be no problem advertising the /24 today but there may be in the future. Why not use address space from your provider? We all have a responsibility to try to do the 'right thing' with address space. Just because you can do something, doesn't mean you should.
APNIC have nothing to say about routability of prefixes, in general, just allocation of numbers.
Well not quite - see Policies for address space management in the Asia Pacific region (http://www.apnic.net/docs/policy/add-manage-policy.html) in particular: 6.1. Routability not guaranteed APNIC recognises that the routability of address space can never be guaranteed. Specifically, in order to reduce the number of globally advertised routes, transit providers worldwide implement route filtering policies based on prefix length, with the result that non-provider-based assignments are least likely to be routable across the Internet. Therefore, APNIC policy should encourage those seeking address space to request it from upstream providers rather than from APNIC directly. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog