[ipv6-wg] additional IPv6 allocation (ripe-512 issues)

hello all,

Lately we've been trying to lay out a future-proof IPv6 addressing plan 
(actually, to revise our initial IPv6 plan from a few years back) and we 
came to the conclusion that if we were to plan ahead for a few years, we 
would need an extra IPv6 allocation from RIPE, one more /32 (we already 
have one). Well, according to ripe-512 we're not eligible for a 
subsequent allocation yet, since we haven't met the subsequent 
allocation criteria (HD ratio).

We'll be offering our commercial dual stack services (broadband, 
leased-lines VPNs) next year. This means that we'll have 1,2M potential 
subscribers (/56) just for the retail service. And then there's all the 
/48s for the VPNs and bigger customers. I'm not saying that all of our 
customers will migrate to IPv6 at once but we have to plan, don't we? 
And then there's the growth factor to be considered also...

For us, this extra /32 will make the difference between an efficient and 
future-proof addressing plan that will last for many years and one that 
will have to be revised after 2-3 years (with all the readdressing etc). 
I thought that one of the key advantages with IPv6 was the fact that we 
would get rid of readdressing. What I'm trying to say is that ripe-512 
is not flexible enough. In the end, should we planning ahead for many 
years (as per RFC6177) or not?


any thoughts?

cheers,
Yannis