[address-policy-wg] [Ticket#2012110601002595] Status of /24 PI IPv4 from last /8

Hi,

> this statement might need some adjustment to "there is no IPv4 PI, can we do something else?", like "can we use IPv6 PI plus double-IPv4-PA?" or "can we use IPv6 PI plus our ISP's friendly NAT64 translator?"...

I think these are the only options that can survive in the medium to long term. At some point in time the final /8 will also be depleted and then everybody will be unhappy. We should start moving in such a direction *now*.

Geoff Huston showed us years ago: we were meant to deploy IPv6 before the IPv4 pool ran out. We postponed deployment until we did run out. If we keep postponing solutions that don't rely on IPv4 address space then we will remain in the situation we are in now and the pain will become worse and worse.

We have been making policies for specific cases (we now have PA form the final /8, we have IXP space from that /8, we are discussing PI from that /8 now). Maybe we need to take a step back and look at the big picture first. I personally think that it would be very bad if ISPs don't have any IPv4 space for things like central NAT64 boxes or similar services for example. We have the current final /8 policy for that now, but lets look a few steps ahead...

- Sander