Bring up eth0 ONLY if net available

[gidem]

Hello,
I'd like to know if there is a way to bring eth0 only if a network cable is plugged in. The " problem " is that I have a laptop and since I'm not always using it at home and don't always have access to internet, I find it annoying to wait for "bringing up eth0" when booting when I know there is no cable plugged in.

Not to be badmouthed...but what I really want, is my nic to be handled the same way as in windows

How can I do that...??

Thanks
_________________
"(...) on est responsable de ce qu'on est."
Jean-Paul Sartre

Registered Linux User Nr. 308433

[Earthwings]

You can decrease the timeout value for dhcp if you're using it or have a look at ifplugd for the windows-like recognition of a plugged in cable.

[OdinsDream]

I do remember that there's a way to do this specifically, but there's also a way to use the dhcpcd_eth0="..." line in /etc/conf.d/net to limit the timeout value. I believe it's usually 60 seconds before dhcpcd gives up trying to obtain an IP. Limiting this to something more reasonable may be an acceptable solution. Try the following:

dhcpcd_eth0=" -t 10"

...for a 10 second timeout.
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s/(?<!gnu\/)linux(?! kernel)/GNU\/Linux/gi

Don't blame me. I didn't vote for him.

http://john.simplykiwi.com

[snekiepete]

# rc-update del net.eth0 default
# emerge ifplugd
# rc-update add ifplugd default

then eth0 only comes up when plugged in

[gidem]

Decreasing the timeout value would be a good starting point...I'll try that.
Thank you
_________________
"(...) on est responsable de ce qu'on est."
Jean-Paul Sartre

Registered Linux User Nr. 308433

[snekiepete]

I prefer ifplugd, then I dont even have to wait 1 second if my cable is unplugged.