mcfirst(1) [debian man page]

mcfirst(1)						      General Commands Manual							mcfirst(1)

NAME

       mcfirst - check if you can receive IPv4/IPv6 multicast

SYNOPSIS

       mcfirst [ -46vr ] [ -I interface ] [ -c count ] [ -t time ] [ source ] group port

DESCRIPTION

       mcfirst	can  be  used to check whether one can receive multicast packets from a host. The host may send any type of multicast packets, any
       application, IPv4 or IPv6, ASM or SSM.  mcfirst joins the specified (source) and group, and listens to the specified port.  mcfirst will by
       default exit when the first packet is received, and print how long it waited.

OPTIONS

       The options are as follows.

       -4     Force IPv4

       -6     Force IPv6

       -v     Print version

       -r     Print rate information only

       -I interface
	      Interface to join on

       -c count
	      Stop after receiving count packets. Default is 1 unless time limit is specified

       -t time
	      Exit  after time seconds. Default is to exit after the first packet. If both count and time are specified, mcfirst will exit as soon
	      as one of them is satisfied.

SEE ALSO

       ssmping(1) a tool for checking whether can receive SSM.

       dbeacon(1) a distributed beacon multicast implementation.

BUGS

       Please report them to Stig Venaas <venaas@uninett.no>, the author of this tool.

HISTORY

       mcfirst was developed by Stig Venaas during the early days of the m6bone, the IPv6 multicast backbone.

								   User Manuals 							mcfirst(1)

nfreplay(1)															       nfreplay(1)

NAME

       nfreplay - netflow replay program

SYNOPSIS

       nfreplay [options] [filter]

DESCRIPTION

       nfreplay  is  the netflow replay program of the nfdump tool set.  It reads data from files stored by nfcapd and sents the netflow data to a
       host or a multicat group. The filter syntax is equivalent to nfdump. If a filter is supplied, only the matching flows are  sent.   See  the
       nfdump(1) man page for a detailed description of the filter syntax. All records are sent as netflow version 5.

OPTIONS

       -H remotehost
	  Send all flows to this remote host. Accepts a symbolic name or a IPv4/IPv6 IP address.  Defaults to IPv4 localhost 127.0.0.1.

       -j mcastgroup
	  Join this multicast group and send all flows to this group host. Accepts a symbolic name or multicast IPv4/IPv6 IP address.

       -p port
	  Send all flows to this port on the remote side. Default is 9995.

       -4 Forces  nfreplay  to	send  flows  to  a IPv4 address only. Can be used together with -i if the remote host has an IPv4 and IPv6 address
	  record.

       -6 Forces nfreplay to send flows to a IPv6 address only. Can be used together with -i if the remote host  has  an  IPv4	and  IPv6  address
	  record.

       -v num
	  Send flows as netflow version num. 5 and 9 are supported. The default is sending the flows as netflow version 5. In version 5 mode, IPv6
	  flows, are skipped and 64bit counters are truncated to 32bit.

       -d usec
	  Delay each record by usec mirco seconds, to avoid overrun on the remote side. Default is 10.

       -b buffersize
	  Set send buffer size in bytes. Useful for large data to transfer. Default is system dependent.

       -r inputfile
	  Read input data from inputfile. Default is read from stdin.

       -t timewin
	  Send only flows, which fall in the time window timewin, where timewin is YYYY/MM/dd.hh:mm:ss[-YYYY/MM/dd.hh:mm:ss].  Any  parts  of  the
	  time spec may be omitted e.g YYYY/MM/dd expands to YYYY/MM/dd.00:00:00-YYYY/MM/dd.23:59:59 and sends all flow from a given day.

       -c num
	  Limit number of records to send to the first num flows.

       -V Print nfreplay version and exit.

       -h Print help text on stdout with all options and exit.

RETURN VALUE

       Returns
	   0   No error.
	   255 Initialization failed.
	   254 Error in filter syntax.
	   250 Internal error.

NOTES

SEE ALSO

       nfcapd(1), nfdump(1), nfprofile(1)

BUGS

								    2009-09-09							       nfreplay(1)