Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.mira.net.au!news.netspace.net.au!news.mel.connect.com.au!munnari.OZ.AU!news.ecn.uoknor.edu!feed1.news.erols.com!europa.clark.net!news.mathworks.com!fu-berlin.de!irz401!orion.sax.de!uriah.heep!news
From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: User PPP
Date: 1 Jun 1997 09:41:04 GMT
Organization: Private BSD site, Dresden
Lines: 21
Message-ID: <5mrg3g$40h@uriah.heep.sax.de>
References: <Pine.BSI.3.95.970519184616.5906A-100000@gold.interlog.com>
<5lrpgk$l8u@ui-gate.utell.co.uk> <EAHuFC.xy@sphynx.fdn.fr>
<86g1vgfj10.fsf@bitbox.follo.net> <EAL93r.BH@sphynx.fdn.fr>
<86yb97tiis.fsf@bitbox.follo.net> <EALotq.1Bw@sphynx.fdn.fr>
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
NNTP-Posting-Host: localhost.heep.sax.de
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
X-Newsreader: knews 0.9.6
X-Phone: +49-351-2012 669
X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E
Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:41998
causse@sphynx.fdn.fr (Philippe Causse) wrote:
> But if you subdivide your network, you will then have a netmask which
> has a _greater_ number of bits (see previous posting).
If you subdivide it, yes. But you can also aggregate networks into
one, this is sometimes referred to as `supernetting'. It probably
doesn't make much sense for you locally, but it helps the Internet to
aggregate routing table entries. That's also the reason why you
normally can only get IP addresses per your ISP these days.
The IP address classes are a reminiscence from a previous life; they
have no meaning anymore these days. The respective IN_CLASS_{A,B,C}
#defines in the header could probably be dropped without much whining.
--
cheers, J"org
joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)