/**
   * Test rebind no binding with verify.
   *
   * @throws Exception the exception
   */
  public void testRebindNoBindingWithVerify() throws Exception {
    // set the default server policy
    DhcpServerPolicies.getProperties().put(Property.VERIFY_UNKNOWN_REBIND.key(), "true");

    DhcpV6Message requestMsg = buildNaRequestMessage(firstPoolAddr);
    requestMsg.setMessageType(DhcpConstants.V6MESSAGE_TYPE_REBIND);
    DhcpV6IaAddrOption dhcpIaAddr = new DhcpV6IaAddrOption();
    dhcpIaAddr.setIpAddress("2001:DB8:2::1");
    requestMsg.getIaNaOptions().iterator().next().getIaAddrOptions().add(dhcpIaAddr);

    DhcpV6RebindProcessor processor =
        new DhcpV6RebindProcessor(requestMsg, requestMsg.getRemoteAddress().getAddress());

    DhcpV6Message replyMsg = processor.processMessage();

    assertNotNull(replyMsg);
    assertEquals(requestMsg.getTransactionId(), replyMsg.getTransactionId());
    assertEquals(DhcpConstants.V6MESSAGE_TYPE_REPLY, replyMsg.getMessageType());

    Collection<DhcpOption> dhcpOptions = replyMsg.getDhcpOptions();
    assertNotNull(dhcpOptions);
    assertEquals(2, dhcpOptions.size());

    DhcpV6ClientIdOption _clientIdOption =
        (DhcpV6ClientIdOption) replyMsg.getDhcpOption(DhcpConstants.V6OPTION_CLIENTID);
    assertNotNull(_clientIdOption);

    DhcpV6ServerIdOption _serverIdOption =
        (DhcpV6ServerIdOption) replyMsg.getDhcpOption(DhcpConstants.V6OPTION_SERVERID);
    assertNotNull(_serverIdOption);

    DhcpV6IaNaOption _iaNaOption = replyMsg.getIaNaOptions().get(0);
    assertNotNull(_iaNaOption);

    DhcpV6IaAddrOption _iaAddrOption = _iaNaOption.getIaAddrOptions().get(0);
    assertNotNull(_iaAddrOption);
    assertNotNull(_iaAddrOption.getInetAddress());
    assertEquals(InetAddress.getByName("2001:DB8:2::1"), _iaAddrOption.getInetAddress());
    assertEquals(0, _iaAddrOption.getPreferredLifetime());
    assertEquals(0, _iaAddrOption.getValidLifetime());
  }
  /**
   * Test zero lifetimes.
   *
   * @throws Exception the exception
   */
  public void testZeroLifetimes() throws Exception {
    DhcpV6Message requestMsg = buildNaRequestMessage(firstPoolAddr);
    requestMsg.setMessageType(DhcpConstants.V6MESSAGE_TYPE_SOLICIT);

    DhcpV6SolicitProcessor sProc =
        new DhcpV6SolicitProcessor(requestMsg, requestMsg.getRemoteAddress().getAddress());

    DhcpV6Message advertiseMsg = sProc.processMessage();

    assertNotNull(advertiseMsg);

    // use the ADVERTISE message to create the REQUEST message
    advertiseMsg.setMessageType(DhcpConstants.V6MESSAGE_TYPE_REQUEST);
    DhcpV6RequestProcessor rProc =
        new DhcpV6RequestProcessor(advertiseMsg, advertiseMsg.getRemoteAddress().getAddress());

    DhcpV6Message replyMsg = rProc.processMessage();

    assertNotNull(replyMsg);

    System.out.println("Sleeping before rebind...");
    Thread.sleep(2000);

    // convert the reply into a rebind request
    replyMsg.setMessageType(DhcpConstants.V6MESSAGE_TYPE_REBIND);
    // null out the ServerId option for a rebind
    replyMsg.getDhcpOptionMap().remove(DhcpConstants.V6OPTION_SERVERID);
    // hack the returned reply to request an off-link address
    replyMsg
        .getIaNaOptions()
        .iterator()
        .next()
        .getIaAddrOptions()
        .iterator()
        .next()
        .setIpAddress("2001:DB8:2::1");

    DhcpV6RebindProcessor nProc =
        new DhcpV6RebindProcessor(replyMsg, replyMsg.getRemoteAddress().getAddress());

    // set the server policy to allow it to verify this unknown rebind
    DhcpServerPolicies.setProperty(Property.VERIFY_UNKNOWN_REBIND, "true");

    replyMsg = nProc.processMessage();

    assertNotNull(replyMsg);
    assertEquals(requestMsg.getTransactionId(), replyMsg.getTransactionId());
    assertEquals(DhcpConstants.V6MESSAGE_TYPE_REPLY, replyMsg.getMessageType());

    //		checkReply(replyMsg, null, null, 0);
    Collection<DhcpOption> dhcpOptions = replyMsg.getDhcpOptions();
    assertNotNull(dhcpOptions);
    assertEquals(2, dhcpOptions.size());

    DhcpV6ClientIdOption _clientIdOption =
        (DhcpV6ClientIdOption) replyMsg.getDhcpOption(DhcpConstants.V6OPTION_CLIENTID);
    assertNotNull(_clientIdOption);

    DhcpV6ServerIdOption _serverIdOption =
        (DhcpV6ServerIdOption) replyMsg.getDhcpOption(DhcpConstants.V6OPTION_SERVERID);
    assertNotNull(_serverIdOption);

    DhcpV6IaNaOption _iaNaOption = replyMsg.getIaNaOptions().get(0);
    assertNotNull(_iaNaOption);

    DhcpV6IaAddrOption _iaAddrOption = _iaNaOption.getIaAddrOptions().get(0);
    assertNotNull(_iaAddrOption);
    assertNotNull(_iaAddrOption.getInetAddress());
    assertEquals(0, _iaAddrOption.getPreferredLifetime());
    assertEquals(0, _iaAddrOption.getValidLifetime());
  }