Re: 16 year old bug

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Mon, Aug 23, 2010 at 09:46:16PM -0400, der Mouse wrote:
> I have.  For a significant time (years) I was running my house LAN with
> a netmask ending in (binary) 11011000, I think it was - a /29 expanded
> by adding a second /29 from higher up.  (The memory is very fuzzy, but
> 255.255.255.216 looks right.)
> 
> The reason was exactly this: growing the space without renumbering when
> the original space's pair had alreayd been allocated elsewhere.  Was it
> necessary?  Not for most values of "necessary".  Was it useful?
> Definitely.  Not visible outside its parent network, of course, but
> that's true of most subnetting schemes, including CIDR ones, and it was
> in live use for years.

Pretty much the same result can be obtained by running something like
Roy's parpd on the router and just configuring the end machines for the
bigger subnet.

Joerg