On Sunday 22 of November 2009 13:53:32 Jancs wrote:
> Dear Sirs,
>
> I am sure the question i have is nothing new, but i cannot find an
> answer on it:
>
> I have many DIY routers having 2 or more NICs and what drives me
> crazy is udev's
> stubborn enumeration of NICs to rules or features unknown to me. So,
> every time after power cycle of after a long uptime and reboot, I get
> eth0 and eth1 swapped.
>
> Some time ago I just trashed udev as buggy thing, but now too many
> things relies on it so I want to finally get some ideas on how to for
> udev to use enumerations I need or how to disable enumeration of NIC
> by udev to bee free to enumerate them accordind to my needs.
>
> Regards-
> Janis Eisaks
>
> P.S. I use Slack64-13
>
I do not know about your particular distribution, but stock udev creates
rules in /etc/udev/rules.d to assign interface names based on MAC
address, like
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:1d:09:5e:47:5b", ATTR{type}=="1", KERNEL=="eth*",
NAME="eth0"
So if interface names change for you that could be anything of
- your distribution does not generate those rules
- those rules cannot be preserved (e.g. root is read-only, so udev
cannot commit them to stable storage)
- interface renaming on startup does not work
One more possibility is that at some point those rules *were* generated
but with names that you do not like.
What is wrong with using interface names as udev likes them?
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