jboss cache /jgroups不通信

jboss cache /jgroups不通信
配置如下：
<TCP start_port="7800"
         loopback="true"
         recv_buf_size="20000000"
         send_buf_size="640000"
         discard_incompatible_packets="true"
         max_bundle_size="64000"
         max_bundle_timeout="30"
     
         use_incoming_packet_handler="true"        
         enable_bundling="true"
         use_send_queues="false"
         sock_conn_timeout="300"
         skip_suspected_members="true"
        
         use_concurrent_stack="true"

         thread_pool.enabled="true"
         thread_pool.min_threads="1"
         thread_pool.max_threads="25"
         thread_pool.keep_alive_time="5000"
         thread_pool.queue_enabled="false"
         thread_pool.queue_max_size="100"
         thread_pool.rejection_policy="run"

         oob_thread_pool.enabled="true"
         oob_thread_pool.min_threads="1"
         oob_thread_pool.max_threads="8"
         oob_thread_pool.keep_alive_time="5000"
         oob_thread_pool.queue_enabled="false"
         oob_thread_pool.queue_max_size="100"
         oob_thread_pool.rejection_policy="run"/>
                        
    <TCPPING timeout="3000"
             initial_hosts="${jgroups.tcpping.initial_hosts:172.17.236.63[7800],172.17.252.72[7800]}"
             port_range="1"
             num_initial_members="3"  />
    <MERGE2 max_interval="100000"
              min_interval="20000"/>
    <FD_SOCK/>
    <FD timeout="10000" max_tries="5" shun="true"/>
    <VERIFY_SUSPECT timeout="1500"  />
    <BARRIER />
    <pbcast.NAKACK
                   use_mcast_xmit="false" gc_lag="0"
                   retransmit_timeout="300,600,1200,2400,4800"
                   discard_delivered_msgs="true"/>
    <UNICAST timeout="300,600,1200" />
    <pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
                   max_bytes="400000"/>
    <VIEW_SYNC avg_send_interval="60000"/>
    <pbcast.GMS print_local_addr="true" join_timeout="3000"
                shun="true"
                view_bundling="true"/>
    <FC max_credits="2000000"
        min_threshold="0.10"/>
    <FRAG2 frag_size="60000"  />
    <pbcast.STREAMING_STATE_TRANSFER/>

测试发现，两台jboss cache机不能正常通信，跟踪发现，其原因在于在创建serverSocket时，是以IPV6地址创建的。根据网上资料，配置JVM的启动参数，方法如下：
在weblogic创建的domain/bin，修改setDomainEnv.sh文件，在JAVA_OPTIONS后面加上-Djava.net.preferIPv4Stack=true
最后测试通过，两台主机能够通信