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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
       <pidfile>] [-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  seg-
       ment  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
	       [default	= 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 tim-
	       ing (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 des-
       tination	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
       otherwise contributed to	the project.

SEE ALSO
       udpxy(1)

Version	1.0		       November	18, 2012		    udpxrec(1)

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