PLEASE NOTE: If you installed 2.4b3, rpm will complain when you try to upgrade to 2.4; it gets confused by the "b3" part of the version name. Add "--oldpackage" to the command line and 2.4 will go in just fine. The network autodetection is NOT working in the 2.1-0 releases and below. You must hardcode the network and netmask you wish to use in /etc/labrea.conf. For example, if your network is 192.168.1.0 and your netmask is 255.255.255.0, change the line in /etc/labrea.conf that reads: LABREAOPTIONS="-s -l -p 32000" to: LABREAOPTIONS="-s -l -p 32000 -m 255.255.255.0 -n 192.168.1.0" and add any other options you'd like. Hardcoding the network and netmask IS NOT neccesary for labrea 2.2 and above - which you should be using anyways. If you wish to recompile this, make sure you are NOT using redhat's libpcap rpm. Instead, get the libpcap from tcpdump.org and compile and install it, THEN recompile the labrea rpm. If you use redhat's libpcap, the resulting labrea binary will not be able to detect network settings, as described above. - William Stearns