root@sylph etc]# kismet
Server options:  none
Client options:  none
Starting server...
Waiting for server to start before starting UI...
Will drop privs to phoenix (500) gid 500
No specific sources given to be enabled, all will be enabled.
Enabling channel hopping.
Enabling channel splitting.
Source 0 (Kismet): Enabling monitor mode for ipw2915 source interface eth1 channel 6...
FATAL: Failed to set monitor mode: Invalid argument.  This usually means your drivers either do not support monitor mode, or use a different mechanism for getting to it.  Make sure you have a version of your drivers that support monitor mode, and consult the troubleshooting section of the README.
[root@sylph etc]#