> Richard Melville wrote:
> > I have one Ethernet adapter (Intel 82574L Gigabit) but udev has found two
> > complete with MAC addresses. The phantom version is installed on eth0
> and
> > the real version is installed on eth1. I've searched the system for the
> > phantom MAC address but I cannot find any reference to it. Has anybody
> > else experienced this behaviour? The only other case I can find is
> > somebody on a Raspberry Pi list who experienced the same phantom creation
> > with udev and his wireless adapter.
>
> Sometimes a Gigabit adapter will have tho connections. Once the chip is
> designed, it's probably just as easy to produce that as a separate chip
> with one interface.
>
Thanks Bruce, I suppose that's the logical explanation as, AFAIK, only the
manufacturer can embed a MAC address in the hardware.
>
> What are the contents of /etc/udev/rules.d/70-persistent-net.rules?
>
> -- Bruce
>
> Contents of /etc/udev/rules.d/70-persistent-net.rules:-
# This file was automatically generated by the /lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.
# PCI device 0x8086:/sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0
(e1000e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:22:4d:7c:be:b7", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth0"
# PCI device 0x8086:/sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0
(e1000e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:22:4d:9a:f4:89", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth1"
Richard
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