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Man Pages


Manual Reference Pages  -  EHNT (1)

NAME

ehnt - Extreme Happy Netflow Tool. Client part

CONTENTS

Synopsis
Description
Files
See Also
Authors

SYNOPSIS

ehnt [-0 ASN] [-a ASN] [-b] [-c count] [-i mins] [-m mode] [-n intidx] [-p port] [-P proto] [-r addr] [-s server:port] [-x prefix]

DESCRIPTION

The ehnt command starts ehnt(1) client which connects to ehntserv(8) server and converts raw flow of NetFlow version 5 packets into human-readable (or machine-readable) form.

Ehnt currently has two basic modes of operation, dump and top. The dump modes are used to output details about individual flows. Top mode is used to generate reports which display averages over time for AS numbers, IP protocols and TCP/UDP ports.

The options are as follows:
-0 ASN Replace AS number 0 occurences with this AS number
-a ASN Only display flows to/from this AS number
-b Display big flows (only shows flows with the most bytes or packets received so far)
-c count
  Exit after <count> flows are received
-h Display command-line help
-i mins
  How long to wait between report generations (in minutes)
-m mode
  The name of the mode of operation to use: dump displays flow detail; shortdump shows flow details in a more compact fashion; colondump shows flow details in a machine-readable format; top generates reports of top average utilization
-n intidx
  Specify the interface by SNMP ifIndex number
-p port
  Only display flows to/from this tcp or udp port number
-P proto
  Only display flows using this IP protocol number
-r addr
  Only display flows reported by this router IP address
-s server:port
  The hostname or IP address and port number of the ehntserv(8)
-t topmode
  The type of report to generate when in top mode. (The report type can also be changed interactively while the program is running.) as; Display the AS report proto; Display the IP protocol report tcpport; Display the TCP port report udpport; Display the UDP port report
-v Display the ehnt version number.
-x prefix
  Only display flows to/from this IP prefix. The format for <prefix> is ’address/length’, for example 1.2.3.4/30 or 127.0.0.0/8.

FILES

/usr/local/etc/asnc.txt
  Autonomous Systems Number-to-Name Convertion config

SEE ALSO

ehntserv(8)

AUTHORS


.An Nik Weidenbacher Aq nikw@martnet.com
.An Dmitry Morozovsky Aq marck@rinet.ru

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