ethtool
jjcojax@UBUNTU-7:~$ sudo ethtool eth0 [sudo] password for jjcojax: Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supports auto-negotiation: Yes Advertised link modes: Not reported Advertised auto-negotiation: No Speed: 10Mb/s Duplex: Half Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: off Current message level: 0x00000001 (1) Link detected: no