Java Network Traffic Generator: Difference between revisions
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./bin/receive -v -Djava.net.preferIPv4Stack=true --protocol=multicast --address=225.5.5.5:5555 | ./bin/ntg receive -v -Djava.net.preferIPv4Stack=true --protocol=multicast --address=225.5.5.5:5555 | ||
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./bin/send -v -Djava.net.preferIPv4Stack=true --protocol=multicast --address=225.5.5.5:5555 sometext | ./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