[clug] Ethernet Link Status

Tony Breeds tony at bakeyournoodle.com
Thu Jun 1 00:19:10 GMT 2006

On Thu, Jun 01, 2006 at 10:05:03AM +1000, Brett Worth wrote:
> How can I check the link status of ethernet in Linux?

mii-tool or ethtool can tell you this:

tony at thor:~$ sudo ethtool eth0 | egrep Link
        Link detected: no
tony at thor:~$ sudo mii-tool eth0
eth0: no link

If you're using debian you can probably even use a pre-up script to stop
your wired device from comming up in the firstplace.

Personally I use laptop-net to handle this for me.

Yours Tony

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