Yony Yossef wrote:
Thanks for the explanation.
So there's no way to determine this in advance.. I must build a script that contains my own mapping between MAC addresses and
the wanted interface names and run it after each driver load, rename the
interfaces if necessary.


you must agree it's flexible.

It seems quite wrong, don't you agree?
And how come the unit number is given an arbitrary value? Is there a good
reason for that?

device discovery depends on what slot you put the card into.
so if you move it, it's number may change.

also, how do you identify the particular card you want to have a particular unit number? considering it may move (and for example
USB network interfaces WILL move if you add a keyboard or any
other device..

also to do as you want would take 2 passes.
first one to find the numbers needed and another to do what's left.


Yony



_____ From: H.fazaeli [mailto:faza...@sepehrs.com] Sent: Thursday, January 15, 2009 10:26 AM
To: Yony Yossef
Cc: freebsd-...@freebsd.org; freebsd-questions@freebsd.org
Subject: Re: howto determine network device unit number? device.hints?



for example, say you have 2 interface em0 and em1 which
you like to swap their minor numbers:

ifconfig em0 name tmp
ifconfig em1 name em0
ifconfig em0 name em1

or to assign cisco-like names to you interfaces:

ifconfig xl0 name fastEthernet0 ifconfig em0 name gigaEthernet0 ifconfig fastEthernet0 192.168.1.0/24


Yony Yossef wrote:


-----Original Message-----

From: H.fazaeli [mailto:faza...@sepehrs.com]
Sent: Wednesday, January 14, 2009 6:24 PM

To: Yony Yossef

Cc: freebsd-...@freebsd.org; freebsd-questions@freebsd.org;
Eitan Shefi; Oleg Kats; Liran Liss

Subject: Re: howto determine network device unit number? device.hints?





you may not change unit numbers as they are strictly
controlled by kernel.

However, on freebsd 5.3+, you may use 'ifconfig name <your-name-here>'

to achieve the same affect





Sorry, I don't understand the usage of ifconfig you suggested and the effect

it will cause.

Can you please explain it?

Yony



Yony Yossef wrote:

Hi,



I would like to determine the unit number of my network cards, e.g.

make the device on pci0:16 be assigned every time with unit number 0
and pci0:19 with unit number 1.



Is it done by /boot/device.hints?

if so, how?



My cards are:



mtn...@pci0:19:0:0: class=0x020000 card=0x001715b3
chip=0x636815b3

rev=0xa0 hdr=0x00

mtn...@pci0:16:0:0: class=0x020000 card=0x001715b3
chip=0x636815b3

rev=0xa0 hdr=0x00



So I've tried:



hint.mtnic.0.at="pci0:16"

hint.mtnic.1.at="pci0:19"



but it doesn't work. They keep switching arbitrarily.

I'm using FreeBSD 7.0.



Thanks

Yony

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