[Babel-users] AHCP and IPv4 support
hrogge at googlemail.com
Tue Jun 8 19:17:26 UTC 2010
Am Dienstag 08 Juni 2010, 21:09:19 schrieb Mitar:
> On Tue, Jun 8, 2010 at 8:18 PM, Juliusz Chroboczek
> <Juliusz.Chroboczek at pps.jussieu.fr> wrote:
> > Since AHCP's task is assigning IP addresses, AHCP needs to be able to
> > communicate before it has assigned IP addresses (duh). In IPv6 this is
> > easy -- just use link-local addresses.
> Why not use link-local addresses in IPv4? The we-all-know-and-love
> 169.254.* addresses?
Because there are not enough of them to generate them from MAC. With only 2^16
IPs it's a lot easier to get a collision.
1) You can't win.
2) You can't break even.
3) You can't leave the game.
— The Laws of Thermodynamics, summarized
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