From owner-freebsd-hackers  Thu Jun  1  9:38:27 2000
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From: Luigi Rizzo <luigi@info.iet.unipi.it>
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Subject: Re: changed pci bus probe order from 3.2 to 4.0 -- ideas?
In-Reply-To: <Pine.BSF.4.21.0006010951380.4504-100000@vespa.orem.iserver.com>
 from Fred Clift at "Jun 1, 2000 09:54:23 am"
To: Fred Clift <fred@veriohosting.com>
Date: Thu, 1 Jun 2000 18:37:32 +0200 (CEST)
Cc: freebsd-hackers@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG
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...
> The problem is that the cards get swapped. 
...
> It's a long story as to why switching cables, or changing which card gets
> which IP address isn't really a good solution.  The short answer is that

i suppose the only place where you use the actual card names
is the firewall config and rc.conf -- can't you just make these
scripts fetch the ethernet address of the card(s), set a shell
variable with the name of the good card, and go ahead with that ?

I did something similar in picobsd to make the same floppy recognise
the hardware on different systems. Something like (in /etc/rc):

    n_ether=""
    for main_if in `ifconfig -l` ; do
	set `ifconfig $main_if`
	while [ "$1" != "" ] ; do
	    if [ $1 = "ether" ] ; then
		main_ether=$2
		break 2
	    else
		shift
	    fi
	done
    done

At which point $main_ether contains the ethernet address of your
first ethernet interface and you can base decisions on that...

	cheers
	luigi
-----------------------------------+-------------------------------------
  Luigi RIZZO, luigi@iet.unipi.it  . Dip. di Ing. dell'Informazione
  http://www.iet.unipi.it/~luigi/  . Universita` di Pisa
  TEL/FAX: +39-050-568.533/522     . via Diotisalvi 2, 56126 PISA (Italy)
  Mobile   +39-347-0373137
-----------------------------------+-------------------------------------


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