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Date: Sat, 26 Nov 2005 21:43:08 +0000
From: Brian Candler <B.Candler@pobox.com>
To: "Ricardo A. Reis" <ricardo_bsd@yahoo.com.br>
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Cc: net@freebsd.org
Subject: Re: Bug in routing tables ?
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On Fri, Nov 25, 2005 at 01:20:01PM -0200, Ricardo A. Reis wrote:
>             But i use route add 200.144.xx.xx/[mask] 172.22.xx.xx for 
> many year, and this  work perfectly  on  freebsd and linux.

Yes it does (as of a couple of years ago, I think).

However if you want to specify the netmask explicitly instead of a prefix
length, as the O.P. did, then you have to include the '-netmask' keyword.