[6bone] semi-newbie Q on IPv6 address planning

[Gert Doering]

Hi,

On Fri, Aug 02, 2002 at 03:06:09PM +0200, Joao Luis Silva Damas wrote:
> >>  I chose a /126 (instead of a /127, even before reading Pekka's draft)
> >>  also because that's what a lot of network engineers are used to in
> >>  IPv4 (a /31) and it minimises human error (which is far more frequent
> >>  than a hardware failure).
> >
> >Ummm.  I assume a typo here, but the equivalent of a /31 in IPv4 world
> >is a */127*, not a /126...
> Typo indeed, make it /30 :-)

On the other hand, we *do* use /31s on IPv4 ptp links.  It's a recent
change, but works well.

> >  > And I wish protocol design wasn't a game of designing nice bit
> >>  templates and took operational practice into account as a starting
> >>  point.
> >
> >Seconded.  EUI-64 sucks big time (using MAC addresses and such is a nice
> >idea, but why on earth can't they map 48 bits to 64 in a somewhat more
> >straightforward way than "distribute them over all the 64bits"?)
> 
> And, would you use your router interface's mac address ever to 
> configure the interface IP?

Definitely not for the routers, nor for servers.  For client-only hosts,
it's a nice idea for smallish networks that don't want to setup DHCP.

Gert Doering
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