Java Network Traffic Generator: Difference between revisions
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* [[Linux_7_Multicast_Configuration#Testing|Linux Multicast Configuration]] | * [[Linux_7_Multicast_Configuration#Testing|Linux Multicast Configuration]] | ||
* [[java Networking]] | |||
=Overview= | =Overview= | ||
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==Global Arguments== | ==Global Arguments== | ||
<pre> | <pre> | ||
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Display verbose information about the network operation in process. | Display verbose information about the network operation in process. | ||
Any -D system properties are propagated verbatim to the JVM: | |||
<pre> | |||
./bin/send -Djava.net.preferIPv4Stack=true ... | |||
</pre> | |||
==Common Arguments== | ==Common Arguments== | ||
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--interface=<interface-name>|<address> | --interface=<interface-name>|<address> | ||
</pre> | </pre> | ||
The network interface name is one of those returned by <tt>ip addr</tt>, or by <tt>./info</tt>. An IP address can also be used. | |||
Example: | Example: | ||
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--interface=172.20.1.11 | --interface=172.20.1.11 | ||
</pre> | </pre> | ||
====--address==== | |||
====--port==== | |||
====--local-address==== | |||
====--local-port==== | ====--local-port==== | ||
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Forces the local port. | Forces the local port. | ||
The network interface name is one of those returned by <tt>ip addr</tt>. | |||
==Payload== | |||
<tt>send</tt> accepts a payload argument. | |||
==Usage Examples== | |||
===Sending/Receiving Multicast on Mac=== | |||
Listening: | |||
<pre> | <pre> | ||
./bin/ntg receive -v -Djava.net.preferIPv4Stack=true --protocol=multicast --address=225.5.5.5:5555 | |||
</pre> | </pre> | ||
Sending: | |||
<pre> | <pre> | ||
./bin/ntg send -v -Djava.net.preferIPv4Stack=true --protocol=multicast --address=225.5.5.5:5555 sometext | |||
</pre> | </pre> | ||
Latest revision as of 22:10, 13 July 2017
External
- https://docs.oracle.com/javase/tutorial/networking/datagrams/broadcasting.html
- https://docs.oracle.com/javase/8/docs/api/java/net/MulticastSocket.html
Internal
Overview
A Java program sends multicast socket using DatagramSocket and listens for multicast traffic with MulticastSocket.
GitHub
User Manual
Global Arguments
-d
Start in debug mode.
-v
Display verbose information about the network operation in process.
Any -D system properties are propagated verbatim to the JVM:
./bin/send -Djava.net.preferIPv4Stack=true ...
Common Arguments
--interface
--interface=<interface-name>|<address>
The network interface name is one of those returned by ip addr, or by ./info. An IP address can also be used.
Example:
--interface=eth0
--interface=172.20.1.11
--address
--port
--local-address
--local-port
Forces the local port.
The network interface name is one of those returned by ip addr.
Payload
send accepts a payload argument.
Usage Examples
Sending/Receiving Multicast on Mac
Listening:
./bin/ntg receive -v -Djava.net.preferIPv4Stack=true --protocol=multicast --address=225.5.5.5:5555
Sending:
./bin/ntg send -v -Djava.net.preferIPv4Stack=true --protocol=multicast --address=225.5.5.5:5555 sometext