Listens for UDP packets an sends copies to multiple receivers
go get -u github.com/czerwonk/udp-mirror
This tool is helpful if you want to use more than one netflow analysis tool at the same time.
In this example we want to listen for packets on port 4560. Each packet received should be mirrored and sent to 192.168.1.1:1234 and 192.168.1.2:3456
udp-mirror -listen-address ":4560" -receivers "192.168.1.1:1234,192.168.1.2:3456"
docker run -it -p 4560:9999 czerwonk/udp-mirror "192.168.1.1:1234,192.168.1.2:3456"