Newsgroups: comp.protocols.tcp-ip
Path: utzoo!utgpu!watserv1!maytag!gamiddle
From: gamiddle@maytag.waterloo.edu (Guy Middleton)
Subject: Re: Hosts whose IP numbers end in 0........
Message-ID: <1990Aug26.193347.11073@maytag.waterloo.edu>
Organization: University of Waterloo
References: <1990Aug25.220042.29632@ircam.ircam.fr> <1990Aug26.171641.14037@cs.umn.edu>
Date: Sun, 26 Aug 90 19:33:47 GMT
Lines: 11

In article <1990Aug26.171641.14037@cs.umn.edu> peiffer@cs.umn.edu (Tim Peiffer (The Net Guy)) writes:
> 
> 	I disagree.  The same set of documents known as RFC's also describe
> 	subnetting practices.  It lists nn.0 as host '0' of subnet 'nn'.
> 	Therefore the host part is zero.  BTW, do not forget the host
> 	numbered 255.

This is only true if you use a subnet mask of 255.255.255.0; if your subnets
use (for example) nine bits for a host-part, nn.0 is fine.

Also, nothing in the RFCs obliges anybody to use subnets.