Bypass the e0 device : well done ! This device seems to be... proprietary in a way. About your 100Mb/s limitation, do you limit the rate in ifconfig ? like : > ifconfig vif01 `hostname`-e6 mediatype 100tx-fd partner vif01 may be you could try : > ifconfig vif01 `hostname`-e6 partner vif01 As Sam said, there should be no problem to use the same name.