From owner-freebsd-net  Sun Feb 16  4:13:46 2003
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Date: Sun, 16 Feb 2003 13:13:38 +0100
From: Marc Olzheim <marcolz@stack.nl>
To: Matthew Jonkman <matt@jonkmans.com>
Cc: 'Giorgos Keramidas' <keramida@ceid.upatras.gr>,
	'Matthew Jonkman' <matt@infotex.ws>, freebsd-net@freebsd.org
Subject: Re: 5.0-REL alias problem
Message-ID: <20030216121338.GA25780@stack.nl>
References: <20030216040641.GA566@gothmog.gr> <35918F41AED5B54FAC677253128E6AAE17759E@koksrv1.bmmcpas.local>
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On Sun, Feb 16, 2003 at 01:54:53AM -0500, Matthew Jonkman wrote:
> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         inet XXX.XXX.44.91 netmask 0xfffffff8 broadcast XXX.XXX.44.95
>         ether 00:05:5d:32:c6:9c
>         media: Ethernet autoselect (10baseT/UTP)
>         status: active
>  # ifconfig rl0 alias XXX.XXX.44.92 netmask 255.255.255.248
> ifconfig: ioctl (SIOCAIFADDR): File exists

The netmask of an alias in the same subnet should be 0xffffffff
(255.255.255.255)...

As it says: a route to the XXX.XXX.44.92/255.255.255.248 already exists,
because it's the same as the first ip in that range.

Zlo

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