Re: I don't care what the experts say....
Strange, my linux boxen seem to support this with kernel versions 3.x something. Something tells me there is less entropy in a single IP address rather than having a uniquely identifiable ip address for every freaking device.
ip6tables -v -n -t nat --list POSTROUTING
Chain POSTROUTING (policy ACCEPT 12 packets, 960 bytes)
pkts bytes target prot opt in out source destination
0 0 MASQUERADE all * wl+ ::/0 ::/0
0 0 MASQUERADE all * tun+ ::/0 ::/0
0 0 MASQUERADE all * ppp+ ::/0 ::/0
0 0 MASQUERADE all * wg+ ::/0 ::/0