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| Nforce "forcedeth" ethernet incrimenting. http://forums.linhes.org/viewtopic.php?f=14&t=14518 |
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| Author: | BigDave63 [ Fri Mar 09, 2007 12:40 pm ] |
| Post subject: | Nforce "forcedeth" ethernet incrimenting. |
Here's a strange one. I bought a new machine a couple of months ago to use as a server. It's a duel core AMD64 (exact info escapes me) using a nforce chipset. After the first couple of boots the ethernet quit working. After a while I found the issue is that every reboot the actual thernet number incriments by one, so fixed ip config for a int doesn't work, and it appears dhcp doesn't work after ~eth4, so eth15 has no chance of coming up. (or eth16 or eth17.. ect) I've worked on it off and on, but am pretty frustrated at this point. I would reeeealy like to get this machine finished so I can do some shifting around of servers and backends in the house. Does anyone have a fix or a workaround for this? |
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| Author: | BigDave63 [ Fri Mar 09, 2007 9:37 pm ] |
| Post subject: | Found it! |
My bios has a built in mac address of something like 00:00:00:00:00:07. The bios booting up would detect it was bogus, and replace it with a valid but random one. Udev would detect the new mac address and assign a new ethernet address every boot. I need the built in eth to work, because I need both pci slots this machine has, so I worked around the issue by editing the file /etc/udev/rules.d/z25_persistant-net.rules. I deleted all ethernet lines except eth0, and changed the mac address to be "?*" so it would match any mac address that comes up. |
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