Re: Is either more correct: Network cmd wildcard mask 0.0.0.0

From: Paul Zugnoni (paulzugnoni@gmail.com)
Date: Sat May 19 2007 - 16:22:16 ART


That's pretty sensible.
Thanks for the reply Scott!

Paul

On 5/19/07, Scott Morris <smorris@ipexpert.com> wrote:
>
> Part of the reason for older recommendations on using 0.0.0.0 came with an
> avoidance issue on the peer neighbor route for PPP on ISDN BRI and OSPF
> demand circuit. We don't have that any more, so there's not much of an
> issue for running using one over the other.
>
> Unless there's a strange scenario to run demand circuit over PPPoFR or
> something like that. That would create the same problem and thus give you
> a
> desire for 0.0.0.0 to keep your OSPF traffic minimal, but that seems WAY
> out
> there IMHO.
>
> So use whatever method makes you feel better!
>
>
> Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
> #153, CISSP, et al.
> CCSI/JNCI-M/JNCI-J
> IPexpert VP - Curriculum Development
> IPexpert Sr. Technical Instructor
> smorris@ipexpert.com
> http://www.ipexpert.com
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Paul
> Zugnoni
> Sent: Saturday, May 19, 2007 3:00 PM
> To: ccielab@groupstudy.com
> Subject: Is either more correct: Network cmd wildcard mask 0.0.0.0 vs.
> subnet of interface?
>
> Greetings.
>
> Does anyone know whether there's a more correct way (as far as the lab
> exam
> grading goes) between a 0.0.0.0 wildcard mask in the network command vs a
> wildcard mask that defines the whole subnet for that interface?
>
> int e0
> ip address 192.168.1.1 255.255.255.0
> router eigrp 10
> network 192.168.1.1 0.0.0.0 ! versus
> network 192.168.1.0 0.0.0.255
>
> They both functionally do the same thing, but is there a best practice
> around that? In my search on group-study archives, I found a thread from
> 2001 that ultimately recommended the 0.0.0.0 wildcard mask. Still true?
>
> Thanks,
> Paul
>
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