Setting Solaris 8 to 100 MBPS Full Duplex In /etc/system add: From the command line as root: /usr/sbin/ndd -set /dev/hme instance 0 /usr/sbin/ndd -set /dev/hme adv_100fdx_cap 1 /usr/sbin/ndd -set /dev/hme adv_autoneg_cap 0 /usr/sbin/ndd -set /dev/hme adv_100hdx_cap 0 /usr/sbin/ndd -set /dev/hme adv_10fdx_cap 0 /usr/sbin/ndd -set /dev/hme adv_10hdx_cap 0