ethtool [RESOLVIDO]

Estou tentando ajustar a rede no centos 6.0 64 bits com o comando ethtool -s eth0 autoneg off speed 100 duplex full está apresentando o msg:





ethtool -s eth0 autoneg on speed 100 duplex full
Cannot get current device settings: No such device
not setting speed
not setting duplex
not setting autoneg


se alguém souber outra forma de fazer isso, fico agradecido.

sudo ifconfig | grep eth*
em2 Link encap:Ethernet HWaddr BC:30:5B:34:1C:CF
inet addr:189.1.164.208 Bcast:189.1.164.255 Mask:255.255.255.0
inet6 addr: fe80::be30:5bff:fe34:1ccf/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:145230096 errors:0 dropped:0 overruns:0 frame:0
TX packets:117287397 errors:1830659 dropped:0 overruns:0 carrier:1830659
em2:cp5 Link encap:Ethernet HWaddr BC:30:5B:34:1C:CF
inet addr:189.1.164.24 Bcast:189.1.164.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
em2:0 Link encap:Ethernet HWaddr BC:30:5B:34:1C:CF
inet addr:189.1.164.18 Bcast:189.1.164.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
em2:1 Link encap:Ethernet HWaddr BC:30:5B:34:1C:CF
inet addr:189.1.164.19 Bcast:189.1.164.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
em2:2 Link encap:Ethernet HWaddr BC:30:5B:34:1C:CF
inet addr:189.1.164.21 Bcast:189.1.164.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
em2:3 Link encap:Ethernet HWaddr BC:30:5B:34:1C:CF
inet addr:189.1.164.23 Bcast:189.1.164.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
em2:4 Link encap:Ethernet HWaddr BC:30:5B:34:1C:CF
inet addr:189.1.164.26 Bcast:189.1.164.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:22792 errors:0 dropped:0 overruns:0 frame:0
TX packets:22792 errors:0 dropped:0 overruns:0 carrier:0

acho que seria assim

ethtool -s em2 autoneg off speed 100 duplex full

resolvido, obrigado