private static boolean checkMcastAddress(InetAddress myMcastAddr, String otherMcastHostAddr) {
    String myMcastHostAddr = null;
    if (myMcastAddr != null) {
      myMcastHostAddr = myMcastAddr.getHostAddress();
    }
    if (StringUtils.equals(myMcastHostAddr, otherMcastHostAddr)) {
      return true;
    }
    if (myMcastHostAddr == null) {
      return false;
    }
    return myMcastHostAddr.equals(otherMcastHostAddr);
  }
Adds the distribution manager that is started up to the current DM's list of members.

This method is invoked on the receiver side
geode-core/src/main/java/org/apache/geode/distributed/internal/StartupMessage.java