udpxrec(1) udpxrec manual page udpxrec(1) NAME udpxrec - a programmable multicast traffic recording utility. SYNOPSIS udpxrec [-v] [-b <begin_time>] [-e <end_time>] [-M <maxfilesize>] [-p <pid- file>] [-B <bufsizeK>] [-n <nice_incr>] [-u <seconds_to_wait>] [-m <mcast_ifc_addr>] [-l <logfile>] [-s <ssm_source_addr>] -c <src_addr>:<port> <dstfile> DESCRIPTION udpxrec is a utility designed to record (save into a disk file) a segment of multicast network traffic; the amount of data saved/recorded could be specified in length (KB) or duration (seconds). OPTIONS udpxrec accepts the following options: -c <src_addr>:<port> Channel i.e. multicast address and port from which to record data. -s <ssm_source_addr> Optional SSM source address. -v Enable verbose output [default = disabled]. -m <mcast_ifc_addr> IPv4 address/interface of (multicast) source [default = 0.0.0.0]. -l <logfile> Log output to file [default = stderr]. -n <nice_incr> Nice value increment [default = 0]. -B <sizeK> Buffer size (65536, 32Kb, 1Mb) for inbound (multicast) data [de- fault = 2048 bytes]. -R <msgs> Maximum number of messages to buffer (-1 = all) [default = 1]. -b <begin_time> Begin recording at [+]dd:hh24:mi.ss, '+' signifies relative timing (in N hours/min/sec). -e <endtime> Stop recording at [+]dd:hh24:mi.ss, '+' signifies relative timing (in N hours/min/sec). -M <maxfilesize> Maximum size of destination file. -p <pidfile> Pidfile for this process [MUST be specified if daemon]. -u <seconds_to_wait> Seconds to wait before updating on how long till recording starts. EXAMPLES udpxrec -b 15:45.00 -e +2:00.00 -M 1.5Gb -n 2 -B 64K -s 87.141.215.251 -c 224.0.11.31:5050 /opt/video/tv5.mpg Begin recording multicast channel 224.0.11.31:5050 from source address 87.141.215.251 at 15:45 today, finish recording in two hours or if destina- tion file size >= 1.5 Gb; set socket buffer to 64Kb; increment nice value by 2; write captured video to /opt/video/tv5.mpg. AUTHORS Pavel V. Cherenkov and all the good people who submitted patches or other- wise contributed to the project. SEE ALSO udpxy(1) Version 1.0 November 18, 2012 udpxrec(1)
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