On 24/11/2012 13:55, Eugen Leitl wrote: > On Sat, Nov 24, 2012 at 01:50:30PM +0000, Nick Hilliard wrote: >> Can you suggest a workable alternative? > > At least two. One, allocation from GPS > position fix. Two, where IPv6 address > is also a public key. Latter is used > by several, including cjdns. Surely you're joking? Nick