On Thu, 26 Jul 2001 josh@ssimr.com wrote:

> Two hopefully simple question.
>
> How do I make my network card use Full Duplex as opposed to simplex. I
> figured out how to set the cards media options to full duplex. I
> assume there is a way as the flags fields displays SIMPLEX.

As Manuel mentioned, SIMPLEX means something different - the ethernet
interface doesn't hear its own transmissions, so the network stack should
echo a copy of a packet back to itself.

> bash-2.04# ifconfig -mL de0 inet
> de0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         address: 00:00:c5:53:3b:dd
>         media: Ethernet 100baseTX full-duplex
>         status: active
>         supported Ethernet media:
>                 media 10baseT
>                 media 10baseT mediaopt full-duplex
>                 media 100baseTX
>                 media 100baseTX mediaopt full-duplex
>                 media autoselect
>         inet 192.168.1.6 netmask 0xffffff00 broadcast 192.168.1.255

Check out the mediaopt options of ifconfig.

Take care,

Bill