On 2024/08/22 16:06, Claudio Jeker wrote:
> On Thu, Aug 22, 2024 at 07:51:04AM -0600, Theo de Raadt wrote:
> > Tom Smyth <tom.smyth@wirelessconnect.eu> wrote:
> > 
> > > so Arista and Cisco say area id is a 32 bit value  0-(2^32)-1   expressed as a number
> > > or dotted decimal IP 
> > 
> > Sure, but "dotted decimal IP" is a pretty vague term, because everyone inherited
> > the same flawed pre-cidr conversion functions.  That vagueness is the problem.
> > 
> > So therefore it seems more important that we know it isn't used in practice.
> > That seems to have been checked, and I think we can rush ahead now.  Also,
> > if someone runs into this, their non-strict area can easily be edited into a
> > the strict numeric form, so there's no real hazard here, the whole 32-bit numeric
> > range remains useable.
> 
> Yes, the question is if people use an area id of 1.2 or 1.2.3 and expect it to
> work. ospfd now longer accepts those and that is good so.
> 
> I think common practice is to use 0.0.0.0 or 0 and other areas as a.b.c.d
> at least that is what I have seen.

0.0.0.0, 0, 51, and other areas as a.b.c.d. :-)