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= | ||
| Line 14: | Line 15: | ||
=GitHub= | =GitHub= | ||
{{External|https://github.com/NovaOrdis/playground/tree/master/java/network/ | {{External|https://github.com/NovaOrdis/playground/tree/master/java/network/network-traffic}} | ||
=User Manual= | =User Manual= | ||
==Global Arguments== | |||
<pre> | |||
-d | |||
</pre> | |||
Start in debug mode. | |||
<pre> | |||
-v | |||
</pre> | |||
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== | ||
| Line 25: | Line 46: | ||
--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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</pre> | </pre> | ||
====--address==== | |||
====--port==== | |||
====--local-address==== | |||
====--local-port==== | |||
Forces the local port. | |||
The network interface name is one of those returned by <tt>ip addr</tt>. | 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> | |||
./bin/ntg send -v -Djava.net.preferIPv4Stack=true --protocol=multicast --address=225.5.5.5:5555 sometext | |||
</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