Re: [gentoo-amd64] Udev rules and Ethernet assignments

[Kevin F. Quinn]

On Sat, 16 Sep 2006 00:28:30 -0700
felix@×××××××.com wrote:

> I have a box with 5 ethernet ports -- or 4, if you don't count the
> firewire ethernet which I don't have any use for anyway.
>
> Each boot, they come up with different assignments to the eth?
> interfaces.  It's annoying swapping cables until things start talking
> to the right networks again.
>
> This is my /etc/udev/rules.d/10-net.rules file:
>
> # Onboard Gigabit
> KERNEL=="eth*", SYSFS{address}=="00:E0:81:2A:58:C6", NAME="eth0"
>
> # Onboard Gigabit
> KERNEL=="eth*", SYSFS{address}=="00:E0:81:2A:58:C7", NAME="eth1"
>
> # Onboard 100Mbps
> KERNEL=="eth*", SYSFS{address}=="00:E0:81:2A:58:3B", NAME="eth2"
>
> # PCI card gigabit
> KERNEL=="eth*", SYSFS{address}=="00:E0:4C:69:0C:2C", NAME="eth3"
>
> # PCI card firewire
> KERNEL=="eth*",
> SYSFS{address}=="00-11-06-66-45-55-56-5A-00-00-00-00-00-00-00-00",
> NAME="eth4"
>
> Should this assign things properly?  It doesn't, so I suppose the
> answer is no, but how should I do it then?


I have the following in my rules:

SUBSYSTEM=="net", SYSFS{address}=="00:0b:db:9f:68:c0", NAME="base"

and that works, although that's on an x86 box.  Differences are (1)
I've specified subsystem==net instead of kernel==eth*, and (2) the
names are not already taken.  I wouldn't expect to be able to use eth0
as a name for example, if another device already has that name.

When using new names, you need to create symlinks
from /etc/init.d/net.<newname> to /etc/init.d/net.lo, and setup the
interface information appropriately in /etc/conf.d/net, e.g.

config_base=( "192.168.0.201/24 brd 192.168.0.255" )

etc

Also check you're up-to-date with udev - on several versions network
device renaming doesn't work due to bugs; I'm using udev-0.87-r1 (latest
stable for both arches).

-- 
Kevin F. Quinn