rtl 8139 speed adjusting
 

Hi guys.
I have a problem. I need to change my realtek 8139 (rev C) speed from 100mbps (default) to 10mbps.
could someone tell me how to do it?

use mii-tool

mii-tool -eth0/1 -force=10baseT-FD

see the man page for further details.

You could also use ethtool. See its man page too, you have got a good amount of options available with this.

However sometimes mii-tool & other tools doesnt report the statistics properly.