[CentOS] Gigabit Lan doesn't work

Rob Townley rob.townley at gmail.com
Mon Nov 17 05:44:43 UTC 2008


You may want to see if the device driver for your device has been
blacklisted in order to protect it.
Look through the various /etc/modprobe.d/ blacklist files to see if it
is listed.  I am not an expert, there may be another place to
blacklist or whitelist drivers on your config.

On Sun, Nov 16, 2008 at 10:06 PM, Rilawich Ango <maillisting at gmail.com> wrote:
> Below is the setting.
>
> [root at localhost ~]# more /etc/redhat-release
> CentOS release 5.2 (Final)
>
> [root at localhost ~]# uname -a
> Linux localhost.localdomain 2.6.18-92.1.18.el5 #1 SMP Wed Nov 12
> 09:30:27 EST 2008 i686 i686 i386 GNU/Linux
>
> [root at localhost ~]# ethtool eth0
> 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:  10baseT/Half 10baseT/Full
>                                100baseT/Half 100baseT/Full
>        Advertised auto-negotiation: Yes
>        Speed: 100Mb/s
>        Duplex: Full
>        Port: MII
>        PHYAD: 32
>        Transceiver: internal
>        Auto-negotiation: on
>        Supports Wake-on: pumbg
>        Wake-on: d
>        Current message level: 0x00000007 (7)
>        Link detected: yes
> [root at localhost ~]# ethtool eth1
> Settings for eth1:
> Cannot get device settings: No such device
> Cannot get wake-on-lan settings: No such device
> Cannot get message level: No such device
> Cannot get link status: No such device
> No data available
>
>
> On Mon, Nov 17, 2008 at 11:35 AM, Barry Brimer <lists at brimer.org> wrote:
>>> Actually, I have 2 LAN cards.  eth0 is working as it is 10/100.  There
>>> is a build-in gigalan which doesn't work.  I have to remove the 10/100
>>> and make build-in lan works.
>>>
>>> [root at localhost ~]# ethtool eth0
>>> 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:  10baseT/Half 10baseT/Full
>>>                               100baseT/Half 100baseT/Full
>>>       Advertised auto-negotiation: Yes
>>>       Speed: 100Mb/s
>>>       Duplex: Full
>>>       Port: MII
>>>       PHYAD: 32
>>>       Transceiver: internal
>>>       Auto-negotiation: on
>>>       Supports Wake-on: pumbg
>>>       Wake-on: d
>>>       Current message level: 0x00000007 (7)
>>>       Link detected: yes
>>> [root at localhost ~]# ethtool eth1
>>> Settings for eth1:
>>> Cannot get device settings: No such device
>>> Cannot get wake-on-lan settings: No such device
>>> Cannot get message level: No such device
>>> Cannot get link status: No such device
>>> No data available
>>>
>>>
>>> On Mon, Nov 17, 2008 at 10:54 AM, Barry Brimer <lists at brimer.org> wrote:
>>>>>
>>>>>  I have installed Centos completely.  However, the LAN  doesn't work.
>>>>> Below is the message after I issue.  How can I make it work?
>>>>>
>>>>> 00:19.0 Ethernet controller: Intel Corporation 82567V-2 Gigabit
>>>>> Network Connection
>>>>
>>>> What does "ethtool eth0" tell you?
>>
>> What does "ethtool eth0" tell you when the 10/100 card is not installed?
>> What does "lsmod" look like with the 10/100 card in and out?  What does
>> "dmesg | grep eth" give you with the 10/100 card in and out?
>>
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>>
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