NAME

crude - collector for rude (real-time UDP data emitter)

SYNOPSIS

crude [ -h ] [ -v ] [ -d file ] [ -P 0-90 ] [ -p port ] [ -i ip_addr ] [ -l file ] [ -s flow_id_list ] [ -n number ]

DESCRIPTION

Crude is the receiver and logging utility for flows that are generated with the rude(8) tool. In the default operation mode crude prints the information to standard output, so you'll have to redirect it to file if you like to process it later on. Our recommendation is to log the data into file with the '-l' option. This reduces I/O operations because the data is logged in binary format and soforth improves performance. You can decode the file later on with the option '-d'. If you want simple statistics of specific flows use the '-s' option. Note that options '-d' and '-s' are mutually exclusive.

OPTIONS

-h: Print a short help.
-v: Print the version information.
-d: Decode the capture to stdout from file, which was generated by the '-l' option.
-P: Set the process in real-time round-robin scheduling with the given priority. Needs root permission. Use with care.
-p: Set the UDP port to listen to. The default is 10001.
-i: Set the physical interface to listen from. The argument is the IP address for the specific interface in numerical dotted notation (a.b.c.d). If this is not set, the program will listen to all interfaces.
-l: Log the capture into file in binary format. The default action is to print out the decoded info into stdout.
-s: Print statistics of the given flowlist to stdout. The flowlist is a comma separated list of flow-identifiers. The statistics for each flow include: o number of received packets o num. of packets received out of sequence o estimated number of lost packets o total bytes received o average delay o absolute maximum jitter o throughtput
-n: Set the number of packets to capture. The default value is 0, which means until interrupted with CTRL+C.

BUGS

I hear them crawling in my head.

Please report any other bugs to the authors.

AUTHORS