NAME
nfreplay – replay binary flow files as netflow version v5 or v9 to a remote host
SYNOPSIS
nfreplay -r flowfile -H remotehost -p port [-S Sourceaddr] [-j mcastgroup] [-4] [-6] [-v version] [-d usec] [-b buffsize] [-z num] [-c num] [-v] [-H] [filter]
DESCRIPTION
nfreplay reads binary flow files stored by any nfdump collector and sents the flow records to a remote host or a multicast group.
nfreplay sends the data as netflow v5 or v9 to the remote location.
nfreplay accepts a filter to limit the flows to be sent. The filter syntax is equivalent to nfdump.
The options are as follows:
- -r flowfile
-
Read input data from flowfile.
- -H remotehost
-
Send all flows to this remote host. Accepts a symbolic name or a IPv4/IPv6 IP address.
- -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.
- -S Sourceaddr
-
Use the specified source IP address to send the flows
- -4
-
Forces nfreplay to send flows to a IPv4 address only. Can be used 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 if the remote host has an IPv4 and IPv6 address record.
- -v version
-
Send flows as netflow version version. Version V5 and v9 are supported. In v5 mode, all additional elements to a stadard v5 record are skipped and 64bit counters are truncated to 32bit. The default is v9.
- -u usec
-
Delay each record by usec mirco seconds, to avoid overrun on the remote host. Default is 10usec.
- -B buffsize
-
Set send buffer to buffsize size in bytes. Useful to buffer larger data transfers.
- -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 VALUES
-
255 Initialization failed.
-
254 Error in filter syntax.
-
250 Internal error.
nfreplay returns