[CentOS] Re: Need help with an odd issue I am experiencing
John R Pierce
pierce at hogranch.com
Tue Sep 9 22:18:33 UTC 2008
Robert Spangler wrote:
> On Tuesday 09 September 2008 17:00, Scott Silva wrote:
>
>
>> Either way, ethtool should show you detected and current link states on
>> the connection ;
>>
>
> That is not always the case. I cannot get ethtool to work.
>
> ~ $ /sbin/ethtool eth0
> Settings for eth0:
> No data available
>
> And yes I have eth0 up and running.
>
were you logged on as root? ('$' tends to imply you were not)...
# /usr/sbin/ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Current message level: 0x000000ff (255)
Link detected: yes
$ /usr/sbin/ethtool eth0
Settings for eth0:
Cannot get device settings: Operation not permitted
Cannot get wake-on-lan settings: Operation not permitted
Cannot get message level: Operation not permitted
Cannot get link status: Operation not permitted
No data available
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