eth0 -> eth1

[theuteck at gmail.com]

On Wednesday, April 15, 2015 08:19:59 AM Luca Ferrari wrote:
> On Tue, Apr 14, 2015 at 1:51 PM, Alvin <info at alvin.be> wrote:
> > I can't answer the why. It happens when network cards are added or
> > removed.
> > However, you can check and set the name in this file:
> > /etc/udev/rules.d/70-persistent-net.rules
> 
> Uhm...even stranger: I've two rules for two different interfaces (but
> I see only one port on my case)
> 
> # PCI device 0x1969:/sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0
> (ATL1E) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="00:a0:d1:ae:cf:a6", ATTR{dev_id}=="0x0",
> ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
> # PCI device 0x10de:/sys/devices/pci0000:00/0000:00:0a.0 (forcedeth)
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="00:24:8c:72:10:aa", ATTR{dev_id}=="0x0",
> ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
> 
> 
> Therefore it is quite strange that a rename event is triggered having
> two persistent eth0 and eth1.
> 
> Now I can see that the forcedeth module is working on the
> becoming-eth1 interface, but starting from eth0:
> 
> [    1.146611] forcedeth: Reverse Engineered nForce ethernet driver.
> Version 0.64.
> [    1.668624] forcedeth 0000:00:0a.0: ifname eth0, PHY OUI 0x1374 @
> 1, addr 00:24:8c:72:10:aa
> [    1.668628] forcedeth 0000:00:0a.0: highdma csum pwrctl mgmt gbit
> lnktim msi desc-v3
> [   20.180063] forcedeth 0000:00:0a.0: irq 42 for MSI/MSI-X
> [   20.180100] forcedeth 0000:00:0a.0 eth1: MSI enabled
> 
> 
> Now, from systemd-udevd(8) I got:
>        net.ifnames=
>            Network interfaces are renamed to give them predictable
> names when possible. It is enabled by default, specifying 0 disables
> it.
> 
> Therefore udevd renames interfaces by default, how and why in my case
> is unclear to me.
> 
> Luca

You can delete the 70-persistent-net.rules file, then reboot.  The system will make a 
new file based on what devices it finds.
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