Re: netmask out of sync with broadcast?

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Hello

Ok. This doesn't seem to correspond with your earlier email.

My broadcast address is not just the local part with the bits set to one.

>From ifconfig output:
Net mask    255.255.255.0
broadcast   10.255.255.255

The other boxes were of this form
Netmask     255.255.255.0
broadcast   10.0.1.255

The second example ifconfig goes with your email below.
"one is the net local one, where all bits or the local part are one"
I think you are saying the local part is where the netmask is zero.

JD

Bernd Eckenfels <ecki@lina.inka.de> on 10/24/2002 01:32:04 PM

To:    John F Davis/Raleigh/IBM@ibmus
cc:    linux-net@vger.kernel.org
Subject:    Re: netmask out of sync with broadcast?



On Wed, Oct 23, 2002 at 09:45:18AM -0400, John F Davis wrote:
> So, its not a problem?  That's cool.  It still seems that the broadcast
> would be
> the entire 10.x.x.x network.

no, there are two ipv5 broadcast addresses. One is the media global
255.25.255.255 (all bites =1) and one is the net local one, where all bits
of the local part are one. The local part is always defined by the netmask.
We have classless networks for a few years now, so netmasks are the only
definition on what is local and what not. On

10.0.0.0/30  your broadcast is 10.0.0.3 your network address is 10.0.0.ß
and
hsts can have 10.0.0.1 or 10.0.0.2.

Greetings
Bernd
--
www.freefire.org




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