[ipv6-wg] RE: [address-policy-wg] IPv6 allocations for 6RD

> If a single 6rd instance is accepted as a rule the end result 
> of that will be that every ISP in the world with 
> non-contiguous allocations will be asking for a /24 next, 
> knowing full well that they're only going to use 0,1% of the 
> network side of that space, ever.

A lot of numbers have been thrown around fairly casually
in this conversation, but /24 is a nice one to focus on because
everyone understands how many /24s there are in a number space.
If we could have run the IPv4 Internet by only giving every ISP
a single /24, then we would never have run out of IPv4 addresses.

Conversely, giving every ISP an IPv6 /24 is not radical and is
not even wasteful given the large number of /24s that we have
in stock at RIPE and at IANA.

As for your comment about 0.1%, I'd like to know how you calculated
that number.

In general, I'm only interested in numbers that count /56s (or /48s)
and /32s since those are the only ones that are meaningful in making
policy.

--Michael Dillon