finish my RFC before posting

[Brandon Butterworth]

> (It gets problematic when such a network outgrows their PI network, due
> to it being smaller than a LIR allocation, and then needs to announce
> more routes than necessary - but a /48 IPv6 PI should be sufficient for
> this kind of setup "for ever". 

Hence why I suggested PI come with a buy back "you can have only
one PI, if you need more you get PA and you have to give tha PI back,
still want PI or does PA now seem more attractive?"

I think it's sensible to give people what they need but not let
them take the piss with it, hence one prefix per origin

brandon