How to customize hardware ethernet settings in FC5?

Joshua Paye jkpaye at gmail.com
Thu Aug 10 16:36:22 UTC 2006


On 8/10/06, Matthew Saltzman <mjs at ces.clemson.edu> wrote:
> On Thu, 10 Aug 2006, Patrick Doyle wrote:
>
> > I have a somewhat problematic ethernet NIC in my laptop and have found
> > that the most reliable way to make it work is to force it to operate
> > in 10 Mbps, half duplex mode.  Each morning I arrive at work, attach
> > my laptop to the network, boot up, and type
> >
> > $ sudo ethtool -s eth0 autoneg off speed 10 duplex half
> >
> > and the network works fine all day long.
> >
> > Now, I'm getting tired of this, and I think I ought to be able to
> > force this configuration somewhere.  The problem is, I haven't the
> > foggiest idea where to do it in FC5.  On Debian, I could edit
> > /etc/network/interfaces and specify a "pre-up" command.  In FC5, there
> > is probably some file in /etc/sysconfig/... that I can edit (either by
> > hand, or via a GUI application -- although, I don't see it under
> > System|Network...) to change this, I just don't know where to begin to
> > look.
> >
> > Any pointers?
>
> You might use an "options" line in /etc/modprobe.conf.  The options are
> documented in kernel-doc.  For example,
>
>      $ more /etc/modprobe.conf
>      alias eth0 e1000
>      alias eth1 e1000
>      options e1000 Duplex=2 Speed=100
>
>

Alternatively you can add the line.
"/usr/sbin/ethtool -s eth0 autoneg off speed 10 duplex half"
to
"/etc/rc.d/rc.local"

Minus the quotes and assuming that ethtool is located in /usr/sbin.  I
do essentially the same thing to set Wake On Lan to on at boot.




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