The file "patch-20010630.gz" is applied to calculate the confidence interval and to generate the result files to plot the excel graphics proposed in the deriverable (WP4). The patch is for both graphic and no_graphic versions. Also, the file "patch-20010925_multicast_linux.gz" is needed to let mgen to use multicast addresses correctly with Linux. It must be applied after the first patch. To apply the patches, run inside the directory which contains the source files: cat patch-XXXX | patch -p1 or zcat if "patch-XXXX" is compressed. The script used to run the tests use the patched version of mgen. Both the scripts and the executables in the source host must be in the same directory. ******************* The IPv4 version of MGEN is not supported by our project, and future versions can be downloaded from http://manimac.itd.nrl.navy.mil/MGEN/