Ah yes, classful addressing. Blast from the past...
I am assuming you are aware of the classes of IP addresses, and how a
class A address has a first octet of 1-127, etc..
Well, what IP Classless means is that the router *does not* assume that an
IP address with a first octet of 1-126 is a /8 address, 128-191 a /16
address, 192-223 a /24 address and so forth.
Sound a bit archaic? Hmm... So are IGRP and RIP. ; )
Your question is kind of tough to answer directly, since you do not need to
use IP Classless unless you need to break, say a 10.x.x.x network into /24
subnets. If you don't include IP Classless, the router will assume the mask
is instead /8 and things will get weird...
HTH,
Casey
>From: "Yee, Jason" <[EMAIL PROTECTED]>
>Reply-To: "Yee, Jason" <[EMAIL PROTECTED]>
>To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
>Subject: ip classless ?
>Date: Tue, 22 Aug 2000 22:07:51 -0500
>
>hi ,
>
>Anyone knows why when we use RIP or IGRP routing protocols and we have a
>default network command entered , we need to include ip classless?
>
>Any form of input will be greatly appreciated
>
>
>thanks
>
>
>Jason
>
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