Would be great to have an explanation of how that works. Where is that v6ified rfc1918 address specified? Does that mean a v6 host running v6peer can just ping

Would be great to have an explanation of how that works. Where is that v6ified rfc1918 address specified? Does that mean a v6 host running v6peer can just ping that rfc1918 address and get to the v4peer behind a NAT?