North American Network Operators Group|
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Re: /8s and filtering
> Hello, > Currently APNIC's policy means that if an organization can fully use a > /26 (since 25% of /24=/26 and to satisfy the multihoming requirement the > organization will need to have a prefix advertised by two or more ISPs) it > can get a multihoming assignment from APNIC. If RIRs begin allocating really long prefixes, it would be best if they did it all from a single block. Allowing providers to allow long prefixes only from that block, rather than having to accept /24 willy nilly across the entire address space. Also, just because an RIR is allocating out of former class C does not necessarily mean providers will accept a /24, if the RIR allocation policy is shorter than /24. However, this is not a problem as long as the entity receiving the address space always announces their largest aggregate. It is only a problem when people only announce more-specifics.