// unused?
// options.addOption("n", true, "the number of packets to send");
options.addOption("p", "port", 6633, "the port to listen on");
options.addOption("t", "threads", 1, "the number of threads to run");
try {
SimpleCLI cmd = SimpleCLI.parse(options, args);
if (cmd.hasOption("h")) {
printUsage(options);
System.exit(0);
}
return cmd;
} catch (ParseException e) {