Samplicator - Send copies of (UDP) datagrams to multiple receivers, with optional sampling and spoofing


This small program receives UDP datagrams on a given port, and resends those datagrams to a specified set of receivers. In addition, a sampling divisor N may be specified individually for each receiver, which will then only receive one in N of the received packets.

INSTALLATION
This distribution uses GNU configure for portability and flexibility of installation. You must configure the program for your system before you can compile it using make:
$ ./configure
$ make
The program can then be installed (under /usr/local/bin by default) using "make install":
$ make install

The configure script accepts many arguments, some of which may even be useful. Using "./configure --prefix ..." you can specify a directory other than /usr/local to be used as an installation destination. Call "./configure --help" to get a list of arguments accepted by configure.

USAGE
The usage convention for the program is
$ samplicate [<option>...] [<destination>...]
Where each <option> can be one of
-d <level> to set the debugging level
-s <address> to set interface address on which to listen
  for incoming packets (default any)
-p <port> to set the UDP port on which to listen for
  incoming packets (default 2000)
-b <buflen> size of receive buffer (default 65536)
-c <configfile> specify a config file to read
-x <delay> to specify a transmission delay after each packet,
     in units of microseconds
-S  maintain (spoof) source addresses
-n  don't compute UDP checksum (only relevant with -S)
-f  fork program into background
-m <pidfile> write the process ID to a file
-4  IPv4 only
-6  IPv6 only
-h  to print a usage message and exit
-u <pdulen> size of max pdu on listened socket (default 65536)
and each <destination> should be specified as <addr>[/<port>[/<interval>[,ttl]]], where
<addr>  IP address of the receiver
<port>  port UDP number of the receiver (default 2000)
<freq>  number of received datagrams between successive
  copied datagrams for this receiver.
<ttl>  The TTL (IPv4) or hop-limit (IPv6) for
  outgoing datagrams.
Config file format:
a.b.c.d[/e.f.g.h]: receiver ...
where:
a.b.c.d     is the sender's IP address
e.f.g.h     is a mask to apply to the sender (default 255.255.255.255)
receiver    see above.
Receivers specified on the command line will get all packets, those specified in the config-file will get only packets with a matching source.


Samplicator - Send copies of (UDP) datagrams to multiple receivers, with optional sampling and spoofing Samplicator - Send copies of (UDP) datagrams to multiple receivers, with optional sampling and spoofing Reviewed by Lydecker Black on 5:30 PM Rating: 5