On Mon, 2010-06-21 at 23:42 +0200, Ask Bjørn Hansen wrote: > On Jun 21, 2010, at 23:34, William Pitcock wrote: > > > On Mon, 2010-06-21 at 23:32 +0200, Ask Bjørn Hansen wrote: > >> Hi everyone, > >> > >> We're going to anycast a /24 for some DNS servers (and possibly another > >> UDP based service)[1]. > >> > >> I see that ARIN are listing on > >> https://www.arin.net/knowledge/ip_blocks.html the smallest allocations > >> from each prefix. Will we have trouble getting a /24 announced if we > >> take it from a regular /20? > > > > No, you can split up allocations as you want, provided you can prove you > > own them. > > > > Some providers however, won't announce anything smaller than a /24. > > I guess to rephrase my question: > > Are there (a significant number of) providers that will filter a /24 > announcement from an ARIN prefix not in the list of prefixes where they > allocate /24 blocks.
I have yet to encounter any. They are "your IPs" as far as they are concerned, so they'll typically announce whatever you ask as long as they are "your IPs". William
