why ubuntu increases interface name of network card eth ( ASAP !!!0

Shay Ohayon shay at shayohayon.net
Mon May 11 16:00:44 IDT 2009


This might not be exactly your problem, but it has a similar solution:

http://ubuntuforums.org/showthread.php?t=658842

Note the second post, workaround, I quote:

>>>>>>>>>>>>>>>

Add this line to /etc/udev/70-persistent-net.rules

SUBSYSTEM=="net", DRIVERS=="forcedeth*", NAME="eth0"

And remove all other lines.

Note that this might make a conflict in some way if there are more
than one network interface that utilies the forcedeth driver. In that
case it may be possible to separate them using the PCI address. Not
tested that.

To get the MAC-address not changing I have the following configuration
in /etc/network/interfaces

auto eth0 static
iface eth0 inet static
address 192.168.0.2
netmask 255.255.255.0
gateway 192.168.0.3
hwaddress ether 00:e0:4c:12:34:56

It is the hwaddress ether that is important.

If you want to use DHCP this would work (not tested):
auto eth0
iface eth0 inet dhcp
hwaddress ether 00:e0:4c:12:34:56

<<<<<<<<<<<<<<

Bear in mind what the writed said, it might be problematic on a
machine with multiple NICs.

Best of luck,
shay

On Mon, May 11, 2009 at 4:24 PM, Lev Olshvang <levo at vboxcomm.com> wrote:
> Shalom List,
>
> Please advice me on the following issue :
>
> I have Compact flash with Ubuntu 8.04 installation and several mini ATX
> boxes
>
> When I booted up first box, I had eth0 interface up
>
> The second box received eth1 name
>
> The third one got  eth2
>
> /etc/udev/rules.d/z25_persistent-net.rules
>
> I do not see any network card related information in udevinfo --export_db
>
> My /etc/network/interfaces is :
>
>
>
> I saw once the post from Shahar:
>
> "On Debian systems, check out /etc/udev/rules.d/z25-persistent-network. Just
> delete the lines for the old and the new network card, and let it choose
> automatically eth0.
>
> Shachar "
>
>
> But  I do not see anything related to the inerface number in my udev/rules
> for Ubuntu
>
> I have a feeling that the list of PCI devices is stored in some place  and
>  the udev matching see network card MAC address stored when I booted other
> boxes
>
> I need some answer today if possible ???
>
>
>
> ThanX,
> Lev
>
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>



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