CIDR - networking

[Kihara Muriithi]

Hi
 Thanks for the response. I suspected most modern host will work with
CIRD, but haven't seen it used widely. Since it has been over 10 years
since CIRD came to existance, this should not be the case and I
wondered whether there was a technical reason behind it and hence the
email
 Now Knott, since you have experience with this set up, have you came
across a problem that you can attribute to CIRD misconfiguration? What
were the symptoms, just in case I ever happen to come across that
issue? Allen mentioned an instance where CIRD can not be used and this
may lead to a situation where classed and classless system network.
 One last thing, am I correct to assume one identify whether a host is
configured with class or classless system by using "ifconfig" and
"route" commands and then looking at the netmask?

Thank you
William
On 1/8/06, Scott Allen <scotta-cpI+UMyWUv9BDgjK7y7TUQ at public.gmane.org> wrote:
> On Sun Jan 08,2006 08:26:30 AM James Knott wrote:
> > I have never seen a system that required address classes.  I've
> > always been able to use CIRD.
>
> AFAIK if you want to use the /etc/networks file to resolve network
> names (as you do with hosts in /etc/hosts), then you have to stick
> with network classes because /etc/networks does not allow you to
> specify a mask. If you resolve network names using DNS or just use
> numbered IP addresses, then /etc/networks is not required and CIDR
> can be used.
>
> Other than the /etc/networks file, I haven't come across anything in
> Linux that is IP class dependent, unless you want to use RIP V1 as a
> routing protocol.
>
>
> --
> ** Scott Allen   scotta-cpI+UMyWUv9BDgjK7y7TUQ at public.gmane.org **
> **     Toronto, Ontario, Canada     **
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