*BSD News Article 68757


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From: zeno@serv.net (Sean T. Lamont)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Can't traceroute to virtual hosts
Date: 17 May 1996 05:08:51 -0700
Organization: ServNet Internet Services, Seattle, WA
Lines: 20
Message-ID: <4nhq8j$f5p@itchy.serv.net>
References: <4mhaeg$f8@venus.os.com> <4mjnl4$hgn@paperboy.livenet.net> <4mkakq$51s@uriah.heep.sax.de> <4nd1nv$1cn@anorak.coverform.lan>
NNTP-Posting-Host: itchy.serv.net

>The mask should be 0xffffffff - meaning that anything on this network can
>be reached down this interface.... ie. only that machine.

From a TCP/IP standpoint, this makes little sense. All bits are significant
for the network, none for the host? What about IP broadcast for that 
subnetwork? Besides, what's the fundamental difference between a virtual
host using (as you say) ffffffff and a 'real' host using ffffff00?

I'd been using ffffff00 for virtual IP's and adding a static local 
route to 127.0.0.1. Works fine, except for some minor initial complaints.





-- 
Sean T. Lamont, President / CEO, Abstract Software (ServNet)  
- Internet access * WWW hosting * TCP/IP * UNIX * NEXTSTEP * WWW Development -
email: lamont@abstractsoft.com              WWW:  http://www.serv.net
"...There's no moral, it's just a lot of stuff that happens". - H. Simpson