Hello,
why so many quetions? Because it is not always straight forward. And the documentation is not always 100% true.
THis is obviously due to the huge amount of different hardware.
I had a hard time to get my asus working.
And this is because the wiki says here http://wiki.openwrt.org/OpenWrtDocs/Configuration
that eth0 is the wan interface and eth1 is the lan interface, which is wrong for me.
For me it is:
eth0: LAN
eth1: WAN
eth2: seems to be the wifi port, but I havent managed to bring it up,yet.
root@OpenWrt:~# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 no wireless extensions.
eth2 IEEE 802.11-DS ESSID:""
Mode:Master Frequency:2.412 GHz Access Point: 00:00:00:00:00:00
Tx-Power:31 dBm
RTS thr=2347 B Fragment thr=2346 B
Encryption key:off
br0 no wireless extensions.
ppp0 no wireless extensions.
Kind regards
Cornelius