>>506
> xl0: WARTING: no media options bits set in the media options register!!
> xl0: this could be a manufacturing defect in your adapter or system
> xl0: attempting to guess media type; you should probably consult your vendor
> xl0: unkonwn device ID: 109 -- defaulting to 10baseT
> xl0: selecting 10baseT transceiver, half duplex

無駄かもしれんけど media type 指定してみたら?