I copied this from the how to pages a while back. It worked for me.
How to run Kismet on the SL-6000L
1) Obtain Kismet, Kismet-qt, libpcap, and libstdc++ from:
http://zaurus.spy.org/feeds/zug/downloads/...0031228_arm.ipk http://prdownloads.sourceforge.net/kismet-...t_2.0.0_arm.ipk http://members.cox.net/skoorb/libpcap0_0.7.2_arm.ipk http://zaurus.xavierxeon.de/devel/gcc/libs...6.1-2-2.10.0.so You will also need the terminal program from the install cd and relative confidence with a console prompt and the vi editor.
2) In terminal:
su
Copy libstdc++ to /usr/lib. Make sure the file permissions match the other libraries. Create a link to libstdc++-libc6.1-2.so.3. (ln -s libstdc++-3-libc6.1-2-2.10.0.so libstdc++-libc6.1-2.so.3)
3) Install Libpcap using the package manager (Add/Remove Software from the Settings menu)
4) Soft reset (may not be required)
5) Install Kismet and Kismet-qt using the package manager
6) vi /home/root/usr/local/etc/kismet.conf to enable source=prism2,wlan0,prism2source. You may also want to turn off GPS support (unless you have one).
7) To prevent the Wireless Interface from timing out (and killing the kismet session) a Ad-Hoc Network Service is created. In the network app create a new service (I call mine “war-walkâ€). “any†for ssid. Ad-hoc type and then setup a bogus static IP address scheme with a class A mask. (IP – 10.1.0.2 Mask - 255.0.0.0 Gateway 10.1.0.1) DNS 10.1.0.1

Connect to this service.
9) Set Kismet GUI to run as root. Then run the Kismet GUI and watch the networks appear...