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Date:      Fri, 30 Aug 1996 11:52:05 -0700 (PDT)
From:      Cassandra Perkins <cassy@loop.com>
To:        Robert Shady <rls@server.id.net>
Cc:        Sam Magee <webadmin@adsight.com>, froden@bigblue.no, isp@FreeBSD.ORG
Subject:   Re: IP aliassing.
Message-ID:  <Pine.BSF.3.91.960830115111.9281M-100000@patty.loop.net>
In-Reply-To: <199608301740.NAA00515@server.id.net>

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Can anyone explain why a netmask of 255.255.255.255 is required for 
aliased IPs.

Thank you,

Cassandra M. Perkins
The Loop ISC

On Fri, 30 Aug 1996, Robert Shady wrote:

> > > I have made IP aliassing work by executing the following command:
> > > ifconfig ep0 xxx.yyy.zzz alias
> > > 
> > > And then add a route for that ip to localhost, but, when I add that alias, ifconfig comes up with a "File exists" error, 
> > > but the alias work, so I just wonder if it is the right way of doing things?
> > > ---------------------------------
> > > Frode Nordahl <froden@bigblue.no>
> > > 
> > > 
> > 
> > This started happening to me yesterday, after I upgraded from
> > 2.1R to 2.1.5R -- before that, the same alias commands worked
> > without complaint.  Obviously some version difference here.
> > Anybody know if these warnings can be ignored?
> 
> You need to specify the network mask now... Ie:
> 
> ifconfig ed0 1.1.1.1 netmask 0xffffff00
> ifconfig ed0 alias 1.1.1.2 netmask 0xffffffff
> ifconfig ed0 alias 1.1.1.3 netmask 0xffffffff
> 
> 	-- Rob
> ===
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