From owner-freebsd-net@FreeBSD.ORG  Wed Dec  3 20:12:14 2014
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 167D1E14
 for <freebsd-net@freebsd.org>; Wed,  3 Dec 2014 20:12:14 +0000 (UTC)
Received: from forward4m.mail.yandex.net (forward4m.mail.yandex.net
 [IPv6:2a02:6b8:0:2519::3:13])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "forwards.mail.yandex.net",
 Issuer "Certum Level IV CA" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id BD5FF77E
 for <freebsd-net@freebsd.org>; Wed,  3 Dec 2014 20:12:13 +0000 (UTC)
Received: from web10m.yandex.ru (web10m.yandex.ru [37.140.138.101])
 by forward4m.mail.yandex.net (Yandex) with ESMTP id CA5DF2320CEC;
 Wed,  3 Dec 2014 23:12:09 +0300 (MSK)
Received: from 127.0.0.1 (localhost [127.0.0.1])
 by web10m.yandex.ru (Yandex) with ESMTP id 2323D24A0EA3;
 Wed,  3 Dec 2014 23:12:09 +0300 (MSK)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.com; s=mail;
 t=1417637529; bh=8ssQMakBpkjOCp2OBkoXrfIBDdFFtvxmTyNyb2C+8UQ=;
 h=From:To:Cc:In-Reply-To:References:Subject:Date;
 b=HeyYUQ48cg4yTTz6TCSjJmlANWYCvgtG7ZvhnXi7OtlqNGgSn69TPi8awi4XjX8g0
 ZLNzt0XCQiIcwfGK6R8Fb/rqUOpcb0fZ5w+NvHxQrhPVRtNG293OVqeReHpLp45qnh
 dqWfJWV9GodjV9T3V/6ToDsOiXMy9CAFodoSpOKo=
Received: from 108.61.122.153.choopa.net (108.61.122.153.choopa.net
 [108.61.122.153]) by web10m.yandex.ru with HTTP; 
 Wed, 03 Dec 2014 23:12:08 +0300
From: Martin Hanson <greencoppermine@yandex.com>
To: Warren Block <wblock@wonkity.com>
In-Reply-To: <alpine.BSF.2.11.1412031024340.32996@wonkity.com>
References: <1511041417624247@web23g.yandex.ru>
 <alpine.BSF.2.11.1412031024340.32996@wonkity.com>
Subject: Re: NICs devices switches "pshycial" place on each boot
MIME-Version: 1.0
Message-Id: <322331417637528@web10m.yandex.ru>
X-Mailer: Yamail [ http://yandex.ru ] 5.0
Date: Wed, 03 Dec 2014 21:12:08 +0100
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset=koi8-r
Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 03 Dec 2014 20:12:14 -0000

>> šThis is a major problem as the device *still* has the right name and the
>> šright IP, but it is as though it has been physically removed from the
>> šslot and changed place.
>>
>> šIs it somehow possible to deal with this problem?
>>
>> špciconf doesn't display those devices.
>
> usbconfig will show the USB devices, 'usbconfig -d 0.3 dump_device_desc'
> shows output from device 0.3. šIt might be possible to assign a unique
> name to each with 'ifconfig name' when they are detected by devd. šThat
> would depend on some unique ID for each that can be detected by devd.
> If they are all the same brand and model, vendor and product ID will not
> help. šSerial number is often not set on USB devices. šMAC address would
> work, if that is passed to devd.

Thank you very much, brought me so much closer to a solution.

I don't think MAC address is passed to devd, but each device does have a
unique serial number, but I am unable to determine how exactly to go about
fixing a device name to a specific serial number.

Kind regards.