Hi,

I am a newbie with openwrt...
I would like to use a WRT54G in client mode to connect to an existing WLAN and also use the LAN ports with full routing functionality.
Is it possible to configure the AP in this way?

Greetings
Mitrandir

Yup

You can find the info on this forum and the wiki pages, I'm planning on writing a simple howto when I get round to it.

Basically:
- Seperate WLAN and LAN from the bridge (I do it by setting nvram variables lan_ifnames and wifi_ifname).
- Put the box into client (station) mode.
- Set up iptables to consider WLAN the "outside", NAT if you want, etc.
- Scan for Access Point (wl scan; wl scanresults).
- Connect to Access Point (wl join <ssid> ...).
- Use udhcpc on the wifi interface to get an IP.

Jannes

I am also VERY interested in these informations... Could you perhaps give us a hint where to find more detailed information? I searched for it already without useful results... Your post was the first short instruction I found 

Best regards
Keith

Well, I just today received another WRT54G and am about to turn it into a wardriving-box right now. It will be in client mode AND automatically scan for and connect to open Access Points. I'll add all steps into a small howto and let you know.

ok, it's up.

http://wifi-portal.elevate.nl/docs/clientmode.html

I'll add some more details and tips later, but the basics are there.

Jannes