by default, the adapter auto-negotiates the speed and duplex of the connection. if there is a specific need, the ifconfig utility can be used to configure the speed and duplex settings on the adapter. example usage: ifconfig em[interface_num] [ip_address] media 100basetx mediaopt full-duplex

    only use mediaopt to set the driver to full-duplex. if mediaopt is not specified and you are not running at gigabit speed, the driver defaults to half-duplex.

    this driver supports the following media type options:

   

   

    for more information on the ifconfig utility, see the ifconfig man page.