java udp send from specific IP address

Question

I have a server with many IP addresses, and a UDP socket bound to 0.0.0.0 so I can receive UDP from any of them. How can I specify the source IP address to use in the UDP packets I am sending? My current implementation is using NIO so maybe using the DatagramChannel to perform the sending is the problem.

Answer 1

I gave up on a clean solution and just use a bound DatagramSocket per IP address on server that can be used to send UDP with the specific source IP for the outbound packets.