Multicast with Docker Swarm and overlay network

I am testing an application using multicast for the discovery. I created a Swarm cluster and a network create -d overlay swarm-net so the containers share the same LAN across the several Swarm agents hosts.

The discovery seemed to not be working, so I installed tshark. tshark shows the IP address node within which tshark is running and the multicast address for the packet being sent though tshark does not show any incoming multicast packet.

  • Workdir of Node.JS
  • Not able to connect to Oracle Database using Docker Container
  • Docker: how to get back to initial directory after issuing a WORKDIR command
  • Docker - Override or remove ENTRYPOINT from a base image
  • Redis in docker starts/restarts multiple times?
  • Docker : Unable to run Docker commands
  • Note that, as I don’t know a better way to do so, the container is run with --privileged to enable tshark.
    Note also that containers can communicate with each other.

    Is the multicast blocked because of Docker iptable?
    How to enable multicast in an overlay network?

  • Can't start apache with supervisord from a Docker container
  • Docker nginx proxy to host
  • Can anyone help me to create Dockerfile for my tomcat copy?
  • Docker Storage - Getting a Layman's answer
  • Starting ntp service automatically on Debian running inside Docker container
  • Docker containers - DNS issue
  • One Solution collect form web for “Multicast with Docker Swarm and overlay network”

    Overlay-driver network does not support multicast as it uses vxlan unicast, according to chanwit (and my experience so far).

    Note that the plugin weave net (an overlay network driver) does support multicast!

    Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.