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NAME | SYNOPSIS | DESCRIPTION | COMMAND | WARNING | AUTHOR | SECURITY | AVAILABILITY | COLOPHON |
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PG3(8) iputils PG3(8)
pg3, ipg, pgset - send stream of UDP packets
source ipg
pg
pgset COMMAND
ipg is not a program, it is script which should be sourced to bash.
When sourced it loads module pg3 and exports a few of functions
accessible from parent shell. These macros are pg to start packet
injection and to get the results of run; and pgset to setup packet
generator.
pgset can send the following commands to module pg3:
odev DEVICE
Name of Ethernet device to test. See warning below.
pkt_size BYTES
Size of packet to generate. The size includes all the headers:
UDP, IP, MAC, but does not account for overhead internal to
medium, i.e. FCS and various paddings.
frags NUMBER
Each packet will contain NUMBER of fragments. Maximal amount for
linux-2.4 is 6. Far not all the devices support fragmented
buffers.
count NUMBER
Send stream of NUMBER of packets and stop after this.
ipg TIME
Introduce artificial delay between packets of TIME microseconds.
dst IP_ADDRESS
Select IP destination where the stream is sent to. Beware, never
set this address at random. pg3 is not a toy, it creates really
tough stream. Default value is 0.0.0.0.
dst MAC_ADDRESS
Select MAC destination where the stream is sent to. Default value
is 00:00:00:00:00:00 in hope that this will not be received by
any node on LAN.
stop
Abort packet injection.
When output device is set to some random device different of hardware
Ethernet device, pg3 will crash kernel.
Do not use it on VLAN, ethertap, VTUN and other devices, which
emulate Ethernet not being real Ethernet in fact.
pg3 was written by Robert Olsson <robert.olsson@its.uu.se>.
This can be used only by superuser.
This tool creates floods of packets which is unlikely to be handled
even by high-end machines. For example, it saturates gigabit link
with 60 byte packets when used with Intel's e1000. In face of such
stream switches, routers and end hosts may deadlock, crash, explode.
Use only in test lab environment.
pg3 is part of iputils package.
This page is part of the iputils (IP utilities) project. Information
about the project can be found at ⟨http://www.skbuff.net/iputils/⟩.
If you have a bug report for this manual page, send it to
yoshfuji@skbuff.net, netdev@vger.kernel.org. This page was obtained
from the project's upstream Git repository
⟨https://github.com/iputils/iputils.git⟩ on 2018-02-02. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2017-11-14.) If you discover any rendering problems in
this HTML version of the page, or you believe there is a better or
more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
iputils s20161105 PG3(8)
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