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Date: Tue, 01 Mar 2005 16:38:39 +0000
From: Chris Hodgins <chodgins@cis.strath.ac.uk>
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cc: Ted Mittelstaedt <tedm@toybox.placo.com>
cc: "Jason D. Montgomery" <jason@atgi.com>
Subject: Re: Documentation Error?
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Jerry McAllister wrote:
>>owner-freebsd-questions@freebsd.org wrote:
>>
>>>http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/confi
>>>gtuning-v irtual-hosts.html
>>>
>>>states that adding a virtual address is done in rc.conf like this:
>>>
>>>ifconfig_fxp0="inet 10.1.1.1 netmask 255.255.255.0"
>>>ifconfig_fxp0_alias0="inet 10.1.1.2 netmask 255.255.255.255"
>>>
>>>Shouldn't it be this instead?
>>>
>>>ifconfig_fxp0="inet 10.1.1.1 netmask 255.255.255.0"
>>>ifconfig_fxp0_alias0="alias 10.1.1.2 netmask 255.255.255.255"
>>
>>No.  The actual command to make one is:
>>
>>ifconfig fxp0 inet 10.1.1.2 netmask 255.255.255.255 alias
>>
>>So you do need to pass the "inet" to ifconfig.  The _alias0 makes
>>the script pass the trailing "alias"
> 
> 
> Hmmmm,   So what is happening when no 'inet' is in the string?
> It seems to work fine.    Is something still not right and just
> waiting to explode?    We have lots of servers configured that way.
> 
> ////jerry
> 
> 
>>Ted
>>
> 
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> 

man rc.conf and search for "network_interfaces".  The reason it still 
works is that if you do a simple test with your ifconfig both:

ifconfig wi0 192.168.0.6
ifconfig wi0 inet 192.168.0.6

....work as you would expect.

HTH
Chris