Switching LAN/WLAN on boot

[r_schneid]

I use my laptop at home as well as at work, with an ethernet connection at work and WLAN (WIFI) at home. It annoyed me to wait for the inactive network to find out it was actually inactive (dhcp timeout). So I wrote a little script that checks if a ethernet cable is connected. If that is the case, the ethernet device eth0 is started. If not the WLAN, eth1, is started.

More detailed description:

http://gentoo-wiki.com/HARDWARE_Sony_Va ... LAN.2FWLAN

(of course you may have to change device names)


Hope someone finds this useful.
Comments and suggestions are welcome.

Rene

[deno]

Nice, thnx, just what I need.

[ZmiyGorinich]

Thanks.

But how I can make this.
If network cable plug then use ethernet card for network, if unplug than use WiFi?

[ppurka]

Very nice! I have been using a script on my own, which first tries the LAN and if it fails then modprobes and starts the wireless.

This script is _very_ useful in that context.

But how I can make this.
If network cable plug then use ethernet card for network, if unplug than use WiFi?

This is to be started as a service. So, when you boot your machine (or resume from suspend) then (re)start this service so that if a cable is plugged then it will start the LAN, and if there is no cable plugged in, it will start the wifi.

[Evincar]

Thanks.

But how I can make this.
If network cable plug then use ethernet card for network, if unplug than use WiFi?

Have you tried arping using arping configuration? Have a look at this:

http://gentoo-wiki.com/HOWTO_Network_pr ... ith_arping

It works flawlessly for me: Auto-search the two wired gateways I use (home and work), if no plug, the wireless comes up and connects

[joysofpi]

I believe sys-apps/netplug in portage also does this pretty well