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Issues encountered with assigning .0 and .255 as usable addresses?

ok...  so lets look at some space here. is clearly on the unusable boundary.
what about  & ??? is also clearly on the unusable boundary...  UNTIL   

the delegation moves from a /22 to a /21.  Then its usable.

clear?  thought so.


On Tue, Oct 23, 2012 at 10:00:53PM +0200, Tore Anderson wrote:
> * Job Snijders
> > In the post-classfull routing world .0 and .255 should be normal IP
> > addresses. CIDR was only recently defined (somewhere in 1993) so I
> > understand it might take companies some time to adjust to this novel
> > situation. Ok, enough snarkyness!
> > 
> > Quite recently a participant of the NLNOG RING had a problem related
> > to an .255 IP address. You can read more about it here:
> > https://ring.nlnog.net/news/2012/10/ring-success-the-ipv4-255-problem/
> AIUI, that particular problem couldn't be blamed on lack of CIDR support
> either, as is (was) a class A address. It would have had
> to be or for it to be special in the classful
> pre-CIDR world.
> That said, it's rather common for people to believe that a /24 anywhere
> in the IPv4 address space is a +class C; so I'm not really surprised.
> -- 
> Tore Anderson
> Redpill Linpro AS - http://www.redpill-linpro.com/