Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!wuarchive!mit-eddie!uw-beaver!zephyr.ens.tek.com!tektronix!sequent!crg5!crg8.sequent.com!edb From: edb@crg8.sequent.com (Edward Bunch) Newsgroups: comp.dcom.sys.cisco Subject: Re: Subnet 0 Message-ID: <20599@crg5.UUCP> Date: 30 Nov 90 00:26:11 GMT References: <1120@soleil.UUCP> <1990Nov27.025444.15666@bwdls61.bnr.ca> Sender: root@crg5.UUCP Reply-To: edb@crg8.UUCP (Edward Bunch) Organization: Sequent Computer Systems, Inc Lines: 14 I've heard this subnet 0 stuff before but I don't understand *exactly* what they mean by it. I can see the example of a class B being subnetted 8 bits pretty clearly. ( 138.95.X.Y ; X nor Y can be 0 ) Y I really understand, no hosts can be 0. X isn't so clear. Doesn't all this 138.95 stuff on the left keep the network from being 0? What if we are doing something weird like subnetting 9 bits? Which address configurations do I avoid now? Ed