I am using JBossCache as an mbean within jboss 4.0.1 and in my .xml descriptor 
snippet shown below:

<attribute name="ClusterConfig">
  |             <config>
  |                 <!-- UDP: if you have a multihomed machine,
  |                 set the bind_addr attribute to the appropriate NIC IP 
address -->
  |                 <!-- UDP: On Windows machines, because of the media sense 
feature
  |                  being broken with multicast (even after disabling media 
sense)
  |                  set the loopback attribute to true -->
  |                 <UDP mcast_addr="228.1.2.3" mcast_port="48866"
  |                     ip_ttl="64" ip_mcast="false" 
  |                     mcast_send_buf_size="150000" mcast_recv_buf_size="80000"
  |                     ucast_send_buf_size="150000" ucast_recv_buf_size="80000"
  |                     loopback="false"/>
  | 

I have ip_mcast="false" but in my jboss server log. I am still seeing the other 
machines on my subnet join in...

INFO  [TreeCache] viewAccepted(): new members: [apple:4440, pear:2225, 
carrot:32883]

Looking at the cache with the tree view it does not seem like state is being 
replicated to the other nodes (which is good!) But why are they still joining 
when other jboss instances come online on my same subnet and launch the 
treecache? I though (perhaps incorrectly) setting ip_mcast to false basically 
turned off clustering.

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