Creating raw packets to spoof UDP Packets

Question

I am looking to spoof UDP packets using Java. Are there any good Java libraries out there that allow you to create your own RAW SOCKETS?

Answer 1

I would use a Java API that wraps libpcap.

libpcap has an "inject" function that allows you to send a raw packet. (Of course, you must have root or administrator priveleges on the machine you're trying to send the packet from.) There are a number of Java APIs that are available, such as jNetPcap or jpacp. jpcap, for example, has a class that allows you to send any packet.