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using VirtualBox, I got two guests (DEBIAN7.7) on my host (WINDOWS7). Each of the two guests has a bridge network interface, eth1 and can ping the other one, I can see each eth1 has multicast enabled. Everything looks fine but, multicast itself seems not working. How can I check if the bridge obtained network support multicast? How to set VirtualBox guests network supporting multicast?

UPDATE: given guests's ip address as 192.168.0.9 and 192.168.0.10, tcpdump -i eth1 -n src host 192.168.0.10 shows that very packets were sent from guest. I got a Wildfly on each guest which is supposed to go in cluster.

UPDATE: digging deeper into issue, I can see Wildfly istances go cluster (... Received new cluster view: [srv2/web|3] (2) [srv2/web, srv1/web]) but they don't share http session. Weird.

Francesco
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1 Answers1

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I can confirm that multicast does work between two VirtualBox (v4.3.20) VMs using bridged networking. I used the open-mtools package to test the traffic, along with Wireshark on the host. Here is a sample test:

From VM1 (Receiver):

mdump -omdump1.log 224.9.10.11 12965

From VM2 (Sender):

msend -1 224.9.10.11 12965 15
heavyd
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