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Date:      Thu, 15 Sep 2005 10:28:33 -0400 (EDT)
From:      Jerry McAllister <jerrymc@clunix.cl.msu.edu>
To:        john@yoafrica.com (John Oxley)
Cc:        questions@freebsd.org
Subject:   Re: IPs , Netmasks and Broadcast.
Message-ID:  <200509151428.j8FESXgT009075@clunix.cl.msu.edu>
In-Reply-To: <20050915141904.GB52909@yoafrica.com>

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> 
> On Thu, Sep 15, 2005 at 09:31:20AM -0400, Jerry McAllister wrote:
> > Anyway, all the aliases for any one NIC card must be 255.255.255.255.
> 
> Not so.  All aliases for any one NIC on the same network must be
> 0xffffffff.  If you have an alias which is on another network, then the
> first alias on that network must use that networks netmask and then all
> the other aliases on the same network use 0xffffffff.
> http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/configtuning-virtual-hosts.html
> 
> But when you have two different networks on one NIC, I think you may
> have to do some routing (I'm lucky, I just do the routing on the Cisco
> switches that all our servers are plugged into :).

Well, I think you are getting in to complications that are beyond
what the questioner asked. 

////jerry

> 
> Have a look at
> http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/network-routing.html
> 
> Also google for or dual homed or something like that.  I
> can't remember exactly what you have to do because I haven't done it in
> so long.
> 
> -John
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