@Override
  public void memberSuspected(ID initiator,
      ID suspect, String reason) {}
JGroups picks an IPv6 address if preferIPv4Stack is false or not set and preferIPv6Addresses is
not set or is true. We want it to use an IPv4 address for a dual-IP stack so that both IPv4 and
IPv6 messaging work
geode-membership/src/main/java/org/apache/geode/distributed/internal/membership/gms/messenger/JGroupsMessenger.java