problems with ethernet after installing wifi support

[victorcete]

Hello , I am a bit confused about a problem with my laptop ethernet card + wifi. (sorry about my english, i'm from spain)

Yesterday I was reading some Howto's about installing Intel Pro Wireless 2100. I used the following commands:

- emerge ipw2100
- emerge wireless-tools
- modprobe ipw2100

after this, my wireless was enabled, and was called "eth1", and my ethernet was "eth0"

i went to sleep : D ... and this morning... i began to use Gentoo like everyday; the wireless was on, so i turned it of using:

- rmmod ipw2100

and then i wanted to configure my LAN connection, but i realized that i had no eth0!!

so, i type another time

- modprobe ipw2100

and... my eth0 ethernet device was on!! how? i am activating wireless!

i used:

- ifconfig

and i could see eth0

but with:

- iwconfig

i also could see eth0!

so, i have now two eth0's, one is ethernet and one is wireless

my problem is that i can't configure ethernet in order to access to the internet, and i don't know what can i do...

how can i rename eth0 (of wireless) to eth1 like the first time?

thanks everybody ;D

[diastelo]

Part of the problem you are describing may be because you did not actually bring down the ethernet connection. Removing the module from memory is NOT the way to do it. You should always bring down ethernet with "/etc/init.d/net.eth0 stop". The same goes for eth1. Modprobing a module will NOT default to eth0 or eth1.

To fix it, you have a few choices. You can manually bring down connections without the config files. Try "ifconfig eth0 down" and something similar for iwconfig. (The syntax should be the same, but I can't confirm this from work.) Or you could just try rebooting. Of course, if you never properly set up the config files for wireless, you'll probably end up repeating a lot of work.
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