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Date:      Mon, 5 May 2003 12:18:54 -0700
From:      Brooks Davis <brooks@one-eyed-alien.net>
To:        Vincent Jardin <vjardin@wanadoo.fr>
Cc:        net@freebsd.org
Subject:   Re: Howto rename an interface
Message-ID:  <20030505191853.GA25827@Odin.AC.HMC.Edu>
In-Reply-To: <200305031547.34668.vjardin@wanadoo.fr>
References:  <200305031547.34668.vjardin@wanadoo.fr>

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On Sat, May 03, 2003 at 03:47:34PM +0200, Vincent Jardin wrote:
> I would like to rename the network interfaces. More particularly, I would=
 like=20
> to control the numbers in the name and to remove the constraints.
>=20
> For example, what are the issues about renaming my 'vr0' interface to eth=
1-3=20
> or DSL-WAN that does not have a ifunit within its name ?
>=20
> I think about the following issues, what am I forgetting ?
>   - update all the sockaddr_dl
>   - many drivers, in fact all of them, log with %s%d, ifname, ifunit
>   - (add a message on the routing socket)

Many issues are resolved by moving from if_name and if_unit to if_xname
in ifnet.  I've got a patch for that, but due to lack of time to deal
with the issues involved in the ABI change I don't think I'll get it
in to 5.x.  It doesn't deal with sockaddr_dl or routing sockets, but
it does clean up most uses if interface names.

I did take a shot at interface renaming, but didn't quite get it right
the first try.  I was looking at what I did wrong a little while ago and
I don't think renaming is all that difficult once you kill off if_name
and if_unit.  It's on my todo list, but I think it's a 6.x feature at
this point.

-- Brooks

--=20
Any statement of the form "X is the one, true Y" is FALSE.
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