If you're using proxy NDP then you don't have "more than enough" IP space for what you're doing. You have none and you're hacking up a workaround -- one that's

If you're using proxy NDP then you don't have "more than enough" IP space for what you're doing. You have none and you're hacking up a workaround -- one that's inevitably going to have people coming away thinking "v6 is hard" rather than putting the blame where it deserves to be.