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Date:      Mon, 20 Dec 1999 15:08:31 -0800 (PST)
From:      "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net>
To:        randy@psg.com (Randy Bush)
Cc:        eddy@isi.edu, freebsd-stable@FreeBSD.ORG (FreeBSD Stable)
Subject:   Re: alias ip addresses not pingable
Message-ID:  <199912202308.PAA44335@gndrsh.dnsmgr.net>
In-Reply-To: <E120BsC-0000Fh-00@rip.psg.com> from Randy Bush at "Dec 20, 1999 03:05:48 pm"

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> >> aliases should have a netmask of 255.255.255.255, as seen in ifconfig(8)
> > why?  i regularly use aliases with masks smaller than /32, on a 3.1
> > system e.g:
> 
> well, it turned out that
> 
> if i
>   boot with the alias netmask of 255.255.255.0
> it does not work
>   delete the alias
>   ifconfig the alias with a /32
> it still does not work
> 
> but if i boot with a /32 alias, it works!

Take a look at netstat -rn in the 2 different situations you describe
above.  Your probably getting an error during the boot with alias /24
that has to do with the fact it can't add the route to the address as
the route already exists.


-- 
Rod Grimes - KD7CAX @ CN85sl - (RWG25)               rgrimes@gndrsh.dnsmgr.net


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