On 16/02/13 21:05, Eugen Leitl wrote:

On Sat, Feb 16, 2013 at 03:14:54PM +0200, Randall Mason wrote:

...

On Fri, Feb 15, 2013 at 9:06 PM, Greg Troxel wrote:

...

Also, fe80:: addresses should probably be ignored, as they are meant to be used only on a single link.

Please do not forget http://en.wikipedia.org/wiki/Cjdns and related, which

cjdns addresses are the first 16 bytes (128 bits) of the SHA-512 of the public key. All addresses must begin with the byte 0xFC, which in IPv6 resolution, is a private address (so there is no collision with any external Internet addresses).

The prefix FC00::/7 (i.e. first byte 0xFC or 0xFD) is reserved for "unique local addresses" (see http://en.wikipedia.org/wiki/Unique_local_address and RFC 4193). However, I don't think that the arguments that Greg Troxel put forward apply to such addresses, in general. It's quite plausible that a Tahoe-LAFS grid could be made up entirely of nodes that are inter-routable using FC00::/7 addresses. -- David-Sarah Hopwood b% ----- End forwarded message ----- -- Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE