diff --git a/daemon/mgmt/rib-manager.cpp b/daemon/mgmt/rib-manager.cpp
index 81196dd..bf3b194 100644
--- a/daemon/mgmt/rib-manager.cpp
+++ b/daemon/mgmt/rib-manager.cpp
@@ -58,6 +58,7 @@
   , m_faceMonitor(face)
   , m_localhostValidator(face)
   , m_localhopValidator(make_unique<ndn::security::v2::CertificateFetcherDirectFetch>(face))
+  , m_paValidator(make_unique<ndn::security::v2::CertificateFetcherDirectFetch>(face))
   , m_isLocalhopEnabled(false)
 {
   registerCommandHandler<ndn::nfd::RibRegisterCommand>("register",
@@ -88,6 +89,12 @@
 }
 
 void
+RibManager::applyPaConfig(const ConfigSection& section, const std::string& filename)
+{
+  m_paValidator.load(section, filename);
+}
+
+void
 RibManager::registerWithNfd()
 {
   registerTopPrefix(LOCALHOST_TOP_PREFIX);
@@ -356,14 +363,7 @@
 {
   BOOST_ASSERT(pa.getData());
 
-  if (!m_isLocalhopEnabled) {
-    NFD_LOG_INFO("slAnnounce " << pa.getAnnouncedName() << " " << faceId <<
-                 ": localhop_security unconfigured");
-    cb(SlAnnounceResult::VALIDATION_FAILURE);
-    return;
-  }
-
-  m_localhopValidator.validate(*pa.getData(),
+  m_paValidator.validate(*pa.getData(),
     [=] (const Data&) {
       Route route(pa, faceId);
       route.expires = std::min(route.annExpires, time::steady_clock::now() + maxLifetime);
diff --git a/daemon/mgmt/rib-manager.hpp b/daemon/mgmt/rib-manager.hpp
index 1be0b81..51f9dfc 100644
--- a/daemon/mgmt/rib-manager.hpp
+++ b/daemon/mgmt/rib-manager.hpp
@@ -72,6 +72,12 @@
   disableLocalhop();
 
   /**
+   * @brief Apply prefix_announcement_validation configuration.
+   */
+  void
+  applyPaConfig(const ConfigSection& section, const std::string& filename);
+
+  /**
    * @brief Start accepting commands and dataset requests.
    */
   void
@@ -245,6 +251,7 @@
   ndn::nfd::FaceMonitor m_faceMonitor;
   ndn::ValidatorConfig m_localhostValidator;
   ndn::ValidatorConfig m_localhopValidator;
+  ndn::ValidatorConfig m_paValidator;
   bool m_isLocalhopEnabled;
 
   scheduler::ScopedEventId m_activeFaceFetchEvent;
diff --git a/daemon/rib/service.cpp b/daemon/rib/service.cpp
index 72045bf..f7b4719 100644
--- a/daemon/rib/service.cpp
+++ b/daemon/rib/service.cpp
@@ -48,6 +48,7 @@
 const std::string CFG_SECTION = "rib";
 const std::string CFG_LOCALHOST_SECURITY = "localhost_security";
 const std::string CFG_LOCALHOP_SECURITY = "localhop_security";
+const std::string CFG_PA_VALIDATION = "prefix_announcement_validation";
 const std::string CFG_PREFIX_PROPAGATE = "auto_prefix_propagate";
 const std::string CFG_READVERTISE_NLSR = "readvertise_nlsr";
 const Name READVERTISE_NLSR_PREFIX = "/localhost/nlsr";
@@ -166,7 +167,7 @@
   for (const auto& item : section) {
     const std::string& key = item.first;
     const ConfigSection& value = item.second;
-    if (key == CFG_LOCALHOST_SECURITY || key == CFG_LOCALHOP_SECURITY) {
+    if (key == CFG_LOCALHOST_SECURITY || key == CFG_LOCALHOP_SECURITY || key == CFG_PA_VALIDATION) {
       hasLocalhop = key == CFG_LOCALHOP_SECURITY;
       ndn::ValidatorConfig testValidator(m_face);
       testValidator.load(value, filename);
@@ -204,6 +205,9 @@
     else if (key == CFG_LOCALHOP_SECURITY) {
       m_ribManager.enableLocalhop(value, filename);
     }
+    else if (key == CFG_PA_VALIDATION) {
+      m_ribManager.applyPaConfig(value, filename);
+    }
     else if (key == CFG_PREFIX_PROPAGATE) {
       wantPrefixPropagate = true;
 
diff --git a/nfd.conf.sample.in b/nfd.conf.sample.in
index eec2bfc..4cd4e26 100644
--- a/nfd.conf.sample.in
+++ b/nfd.conf.sample.in
@@ -414,6 +414,15 @@
   ;   }
   ; }
 
+  ; The following prefix_announcement_validation accepts any prefix announcement
+  prefix_announcement_validation
+  {
+    trust-anchor
+    {
+      type any
+    }
+  }
+
   auto_prefix_propagate
   {
     cost 15 ; forwarding cost of prefix registered on remote router
diff --git a/tests/daemon/mgmt/rib-manager-sl-announce.t.cpp b/tests/daemon/mgmt/rib-manager-sl-announce.t.cpp
index 83d7a64..9c8b87a 100644
--- a/tests/daemon/mgmt/rib-manager-sl-announce.t.cpp
+++ b/tests/daemon/mgmt/rib-manager-sl-announce.t.cpp
@@ -32,11 +32,22 @@
 
 #include <ndn-cxx/util/dummy-client-face.hpp>
 
+#include <boost/property_tree/info_parser.hpp>
+
 namespace nfd {
 namespace tests {
 
 using rib::Route;
 
+static ConfigSection
+makeSection(const std::string& config)
+{
+  std::istringstream inputStream(config);
+  ConfigSection section;
+  boost::property_tree::read_info(inputStream, section);
+  return section;
+}
+
 class RibManagerSlAnnounceFixture : public GlobalIoTimeFixture, public KeyChainFixture
 {
 public:
@@ -55,7 +66,7 @@
     // rule 1.4 violation.
     manager = make_unique<RibManager>(rib, m_face, m_keyChain, m_nfdController, m_dispatcher);
 
-    loadTrustSchema();
+    loadDefaultPaConfig();
   }
 
   template<typename ...T>
@@ -135,24 +146,16 @@
   }
 
 private:
-  /** \brief Prepare a trust schema and load as localhop_security.
-   *
-   *  Test case may revert this operation with ribManager->disableLocalhop().
-   */
   void
-  loadTrustSchema()
+  loadDefaultPaConfig()
   {
-    ConfigSection section;
-    section.put("rule.id", "PA");
-    section.put("rule.for", "data");
-    section.put("rule.checker.type", "customized");
-    section.put("rule.checker.sig-type", "rsa-sha256");
-    section.put("rule.checker.key-locator.type", "name");
-    section.put("rule.checker.key-locator.name", "/trusted");
-    section.put("rule.checker.key-locator.relation", "is-prefix-of");
-    section.put("trust-anchor.type", "base64");
-    section.put("trust-anchor.base64-string", getIdentityCertificateBase64("/trusted"));
-    manager->enableLocalhop(section, "trust-schema.section");
+    const std::string CONFIG = R"CONFIG(
+      trust-anchor
+      {
+        type any
+      }
+    )CONFIG";
+    manager->applyPaConfig(makeSection(CONFIG), "default");
   }
 
 public:
@@ -173,17 +176,44 @@
 BOOST_AUTO_TEST_SUITE(TestRibManager)
 BOOST_FIXTURE_TEST_SUITE(SlAnnounce, RibManagerSlAnnounceFixture)
 
-BOOST_AUTO_TEST_CASE(AnnounceUnconfigured)
+BOOST_AUTO_TEST_CASE(AnnounceWithDefaultConfig)
 {
-  manager->disableLocalhop();
+  auto pa = makeTrustedAnn("/fMXN7UeB", 1_h);
+  BOOST_CHECK_EQUAL(slAnnounceSync(pa, 3275, 1_h), SlAnnounceResult::OK);
+  BOOST_CHECK(findAnnRoute("/fMXN7UeB", 3275) != nullptr);
+
+  auto pa2 = makeUntrustedAnn("/1nzAe0Y4", 1_h);
+  BOOST_CHECK_EQUAL(slAnnounceSync(pa2, 2959, 1_h), SlAnnounceResult::OK);
+  BOOST_CHECK(findAnnRoute("/1nzAe0Y4", 2959) != nullptr);
+}
+
+BOOST_AUTO_TEST_CASE(AnnounceWithEmptyConfig)
+{
+  manager->applyPaConfig(makeSection(""), "empty");
+
   auto pa = makeTrustedAnn("/fMXN7UeB", 1_h);
   BOOST_CHECK_EQUAL(slAnnounceSync(pa, 3275, 1_h), SlAnnounceResult::VALIDATION_FAILURE);
-
   BOOST_CHECK(findAnnRoute("/fMXN7UeB", 3275) == nullptr);
+
+  auto pa2 = makeUntrustedAnn("/1nzAe0Y4", 1_h);
+  BOOST_CHECK_EQUAL(slAnnounceSync(pa2, 2959, 1_h), SlAnnounceResult::VALIDATION_FAILURE);
+  BOOST_CHECK(findAnnRoute("/1nzAe0Y4", 2959) == nullptr);
 }
 
 BOOST_AUTO_TEST_CASE(AnnounceValidationError)
 {
+  ConfigSection section;
+  section.put("rule.id", "PA");
+  section.put("rule.for", "data");
+  section.put("rule.checker.type", "customized");
+  section.put("rule.checker.sig-type", "rsa-sha256");
+  section.put("rule.checker.key-locator.type", "name");
+  section.put("rule.checker.key-locator.name", "/trusted");
+  section.put("rule.checker.key-locator.relation", "is-prefix-of");
+  section.put("trust-anchor.type", "base64");
+  section.put("trust-anchor.base64-string", getIdentityCertificateBase64("/trusted"));
+  manager->applyPaConfig(section, "trust-schema.section");
+
   auto pa = makeUntrustedAnn("/1nzAe0Y4", 1_h);
   BOOST_CHECK_EQUAL(slAnnounceSync(pa, 2959, 1_h), SlAnnounceResult::VALIDATION_FAILURE);
 
diff --git a/tests/daemon/rib/service.t.cpp b/tests/daemon/rib/service.t.cpp
index 4832afd..caa59d3 100644
--- a/tests/daemon/rib/service.t.cpp
+++ b/tests/daemon/rib/service.t.cpp
@@ -80,6 +80,36 @@
 
 BOOST_AUTO_TEST_SUITE(ProcessConfig)
 
+BOOST_AUTO_TEST_CASE(EmptyLocalhostSecurity)
+{
+  const std::string CONFIG = R"CONFIG(
+    rib
+    {
+      localhost_security
+    }
+  )CONFIG";
+
+  runOnRibIoService([&] {
+    BOOST_CHECK_NO_THROW(Service(makeSection(CONFIG), m_ribKeyChain));
+  });
+  poll();
+}
+
+BOOST_AUTO_TEST_CASE(EmptyPrefixAnnouncementValidation)
+{
+  const std::string CONFIG = R"CONFIG(
+    rib
+    {
+      prefix_announcement_validation
+    }
+  )CONFIG";
+
+  runOnRibIoService([&] {
+    BOOST_CHECK_NO_THROW(Service(makeSection(CONFIG), m_ribKeyChain));
+  });
+  poll();
+}
+
 BOOST_AUTO_TEST_CASE(LocalhopAndPropagate)
 {
   const std::string CONFIG = R"CONFIG(