Create a new file in init.d (i like nano for file editing):

nano /etc/init.d/makefull100mode

type in:

ethtool -s eth0 speed 100 duplex full autoneg off

exit. in shell, type:

chmod +x /etc/makefull100mode
update-rc.d makefull100mode defaults

when you reboot the machine or restart the network stack, the interface will come up with true full duplex.

This entry was posted on Wednesday, March 26th, 2008 at 20:47 and is filed under Ubuntu Linux. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.