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| nfreplay(1) | nfreplay(1) |
NAME
nfreplay - netflow replay programSYNOPSIS
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.
- -z num
- Flows are sent with their "real distribution" acrross time (with a speed coefficient) -z 1 : 5 minutes of records will be sent in 5 minutes. -z 20 : 5 minutes of record will be sent in 5/20 = 0.25 minutes.
- -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
Returns0 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 |
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