[Users] Guest to guest multicast

Frank Wall fw at moov.de
Wed Oct 16 14:18:22 UTC 2013


On 17.09.2013 15:41, Moti Asayag wrote:
> I've tested a multicast traffic between VMs which worked fine to me.
> The test made between two VMs running on different hosts, connected
> to the same switch.

OK, I found a secure way to test multicast communication:
(see http://www.linuxproblems.org/wiki/How_to_check_Multicasting)

# VM_A: start the receiver
VM_A# java -cp jgroups-3.3.3.Final.jar 
org.jgroups.tests.McastReceiverTest -mcast_addr 231.12.21.132 -port 
45566
Socket=0.0.0.0/0.0.0.0:45566, bind interface=/127.0.0.1
Socket=0.0.0.0/0.0.0.0:45566, bind interface=/10.1.2.3

# VM_B: start the sender, send message "test"
VM_B# java -cp jgroups-3.3.3.Final.jar org.jgroups.tests.McastSenderTest 
-mcast_addr 231.12.21.132 -port 45566
Socket #1=0.0.0.0/0.0.0.0:45566, ttl=32, bind interface=/127.0.0.1
Socket #2=0.0.0.0/0.0.0.0:45566, ttl=32, bind interface=/10.1.2.4
> test

# VM_A will receive the message
test [sender=10.1.2.4:45566]

So this basically means that multicast is working. For some reason,
VRRP/CARP is NOT working. This means pfSense HA and *BSD (u)CARP is
not usable right now.

Any hint? I'm out of ideas right now.


Thanks
- Frank



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