On 10/31/11 05:59 , Owen DeLong wrote: > Ideally, you should put a /48 at each location. > > Owen > > On Oct 31, 2011, at 12:56 AM, Dmitry Cherkasov wrote: > >> Hello, >> >> Please advice what is the best practice to use IPv6 address block >> across distributed locations. >> >> Recently we obtained our PI /48 from RIPE. The idea was to assign >> partial slices from this block to different locations (we have >> currently 3 offices in Europe and 2 in USA). All locations are >> interconnected with static VPNs. Each location is supposed to >> establish BGP session with local ISP. Partial prefix /56 + aggregate >> /48 (with long AS PATH) are to be announced by each office. >> >> The problem we ran across is that ISP in US does not wish to accept >> prefixes longer then /48 from us. >> Need your advice: is this normal to distribute /48 by /56 parts across >> locations or should we obtain separate /48 for each of them? Or maybe >> we need /32 that can be split into multiple /48? Anyway we are not ISP >> so /48 looks quite reasonable and sufficient for all our needs.
It's not because it can't be de-aggregated further in general. if you have 5 discreet site you really need at /45. if you can tthe announcements of the regions to something less specific than a /48 e.g. a /46 then by all means do so. >> Thank you. >> >> Dmitry Cherkasov > >
