General hints for everybody regarding speed/duplex settings on fastethernet:

Although there are 4 possible combination of settings only two of them 
are valid:

- Both devices negotiate the settings (auto)
- Both devices are manually fixed to the same settings

Any other combination will result in errors, slowdowns and disappointment...

In real life use fixed settings for fix equipment and auto-negotiation 
for mobile devices and you will avoid 99% of the problems.


Chris Buechler wrote:
> You can force speed and duplex via hidden config.xml options, see the
> FAQ.  DON'T do it unless you force BOTH SIDES.  Otherwise you're still
> going to end up with a mismatch (and depending on how the devices
> other than m0n0wall you're plugging into are configured, this is
> usually how you end up with duplex mismatches in the first place).
> 
> -Chris