I made the change in 'z25_persistent-net.rules' and it stoped creating new
interfaces. But specifying the MAC address didn't worked (he configured the
interface correctly but I still couldn't connect to the internet). Probably
it wasn't 00:00:6c:e9:01:77 anymore for eth0 (I suspected that would happen
but decided to try it anyway).
Isn't there a sure way to retrieve the MAC address correctly?
By the way, my BIOS doesn't allow changes in the settings for the net card,
so I can't make the MAC address persistent.
On Wed, Jul 2, 2008 at 2:01 PM, Florian Kulzer <
[EMAIL PROTECTED] <[EMAIL PROTECTED]>> wrote:
> On Wed, Jul 02, 2008 at 10:43:58 +0300, Andrei Popescu wrote:
> > On Tue, Jul 01, 2008 at 06:04:17PM -0300, André Timpanaro wrote:
> > > I've found the /etc/udev/rules.d/z25_persistent-net.rules file:
> > >
> > > # This file was automatically generated by the
> /lib/udev/write_net_rules
> > > # program, probably run by the persistent-net-generator.rules rules
> file.
> > > #
> > > # You can modify it, as long as you keep each rule on a single line.
> > > # MAC addresses must be written in lowercase.
> > >
> > > # PCI device 0x10de:0x03ef (forcedeth)
> > > SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:00:6c:e9:01:77",
> > > NAME="eth0"
>
> [ snip: eth1 - eth7 ]
>
> > > # PCI device 0x10de:0x03ef (forcedeth)
> > > SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:00:6c:32:fa:60",
> > > NAME="eth8"
> >
> > I've heard here that some (all?) nVidia chipsets will change MAC on
> > every boot. That's your problem.
>
> IIRC, certain versions of the forcedeth driver have a bug and cannot
> determine the real MAC address of the device. To compensate for this, a
> semi-random MAC address is chosen that is formally correct for nvidia
> (00:00:6c plus three random bytes). The idea is to minimize the chance
> that two nvidia devices on the same local network get the same MAC
> address. This behavior is unfortunately not really compatible with the
> design philosophy of udev.
>
> > You can look in the BIOS for a setting to have a persistent MAC or
> > rewrite the rule to allocate device names based only on the kernel
> > module (forcedeth?).
>
> You could try to use a wildcard in z25_persistent-net.rules. This might
> work as long as you don't put a second nvidia network card into this
> machine:
>
> # PCI device 0x10de:0x03ef (forcedeth)
> SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:00:6c:*", NAME="eth0"
>
> To make sure that the rest of your network sees a consistent MAC address
> for this computer, try to set it explicitly in the eth0 stanza of
> /etc/network/interfaces:
>
> # The primary network interface
> allow-hotplug eth0
> iface eth0 inet dhcp
> hwaddress ether 00:00:6c:e9:01:77
>
> --
> Regards, | http://users.icfo.es/Florian.Kulzer
> Florian |
>
>
> --
> To UNSUBSCRIBE, email to [EMAIL PROTECTED]
> with a subject of "unsubscribe". Trouble? Contact
> [EMAIL PROTECTED]
>
>
André Timpanaro
