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Re: 16 year old bug
On Tue 24 Aug 2010 at 11:10:55 -0400, der Mouse wrote:
> >>> I believe that non-contiguous netmasks actually are illegal nowadays.
> >> Cite?
> > RFC 4632 (CIDR Address Strategy), section 5.1:
> ...which is titled "Rules for Route Advertisement". (Also, 4632 is a
> BCP, not a standard.)
> > " An implementation following these rules should also be generalized,
> > so that an arbitrary network number and mask are accepted for all
> > routing destinations. The only outstanding constraint is that the
> > mask must be left contiguous."
> With respect to route aggregation in advertisements (ie,
> exterally-visible behaviour). See the second paragraph of 5.2.
Also (thinking perversely), this never says that the 1-bits in the mask
must be left-justified... a mask of 00111111 11111111 11000000 00000000
has the whole mask contiguous...
> /~\ The ASCII Mouse
___ Olaf 'Rhialto' Seibert -- There's no point being grown-up if you
\X/ rhialto/at/xs4all.nl -- can't be childish sometimes. -The 4th Doctor
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