Re: Network changing from eth0 to eth1

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On Thu, Jan 1, 2009 at 6:19 PM, Bill Davidsen <davidsen@xxxxxxx> wrote:
> Nat Gross wrote:
>>
>> On Mon, Nov 3, 2008 at 3:09 PM, Phil Meyer <pmeyer@xxxxxxxxxxxxxxxx>
>> wrote:
>>>
>>> Jim wrote:
>>>>
>>>> FC8, KDE
>>>> What is changing the Network settings from eth0 to eth1 ?
>>>>
>>>> Even if you go into /etc/sysconfig/network-scripts/ifcfg-eth0 and setup
>>>> as
>>>> eth0, and reboot box,it will change settings to eth1.
>>>>
>>>> And it is causing a unstable network.
>>>>
>>>> This box only has one ethernet card in  it.
>>>>
>>>
>>> Now days, when Fedora detects a different NIC from one it knew (right or
>>> wrong), it creates a new entry in:
>>> /etc/udev/rules.d/70-persistent-net.rules
>>>
>>> This is why you get messages in dmesg and at bootup that eth0 is being
>>> 'moved' to eth1.
>>>
>>> It is reasonably safe to remove this file, plus
>>> /etc/sysconfig/network-scripts/ifcfg-eth? and reboot.
>>>
>>> If you are just doing DHCP, then udev will recreate the file, put the
>>> correct NIC into it, and set up a generic ifcfg-eth0 script.
>>>
>>> Good luck!
>>>
>> Thanks for this post, it helped me a bit, but I still have nameserver
>> problem.
>> Yesterday my [only]nic in a 32 bit fc8 box blew. When I replaced it,
>> it insisted to be eth1 and gave me eth0 errors when booting. I did an
>> ifconfig 192.168.... and had eth1 up and running.
>
> You did change the MAC address in the config, to reflect the change right?
> Otherwise eth0 will go to the old MAC address even if not present, and the
> next NIC found will be eth1, eth2, etc.
In the network gui, there is a "probe" button. I used that and saw it
magically change the MAC.
nat

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