diff --git a/doc/source/overview_container_sync.rst b/doc/source/overview_container_sync.rst
index f0ccd44798..af0168791a 100644
--- a/doc/source/overview_container_sync.rst
+++ b/doc/source/overview_container_sync.rst
@@ -60,18 +60,6 @@ Additionally, it should be noted there is no way for an end user to detect sync
 progress or problems other than HEADing both containers and comparing the
 overall information.
 
-The authentication system also needs to be configured to allow synchronization
-requests. Here is an example with TempAuth::
-
-    [filter:tempauth]
-    # This is a comma separated list of hosts allowed to send
-    # X-Container-Sync-Key requests.
-    # allowed_sync_hosts = 127.0.0.1
-    allowed_sync_hosts = host1,host2,etc.
-
-The default of 127.0.0.1 is just so no configuration is required for SAIO
-setups -- for testing.
-
 ----------------------------------------------------------
 Using the ``swift`` tool to set up synchronized containers
 ----------------------------------------------------------
diff --git a/swift/common/middleware/keystoneauth.py b/swift/common/middleware/keystoneauth.py
index 67274cd3bb..af5914b70a 100644
--- a/swift/common/middleware/keystoneauth.py
+++ b/swift/common/middleware/keystoneauth.py
@@ -92,9 +92,6 @@ class KeystoneAuth(object):
                                             'ResellerAdmin')
         config_is_admin = conf.get('is_admin', "false").lower()
         self.is_admin = swift_utils.config_true_value(config_is_admin)
-        cfg_synchosts = conf.get('allowed_sync_hosts', '127.0.0.1')
-        self.allowed_sync_hosts = [h.strip() for h in cfg_synchosts.split(',')
-                                   if h.strip()]
         config_overrides = conf.get('allow_overrides', 't').lower()
         self.allow_overrides = swift_utils.config_true_value(config_overrides)
 
@@ -250,10 +247,7 @@ class KeystoneAuth(object):
         if (req.environ.get('swift_sync_key')
             and req.environ['swift_sync_key'] ==
                 req.headers.get('x-container-sync-key', None)
-            and 'x-timestamp' in req.headers
-            and (req.remote_addr in self.allowed_sync_hosts
-                 or swift_utils.get_remote_client(req)
-                 in self.allowed_sync_hosts)):
+            and 'x-timestamp' in req.headers):
             log_msg = 'allowing proxy %s for container-sync' % req.remote_addr
             self.logger.debug(log_msg)
             return True
diff --git a/swift/common/middleware/tempauth.py b/swift/common/middleware/tempauth.py
index eb49b5f258..25597ed93b 100644
--- a/swift/common/middleware/tempauth.py
+++ b/swift/common/middleware/tempauth.py
@@ -84,10 +84,6 @@ class TempAuth(object):
         if self.auth_prefix[-1] != '/':
             self.auth_prefix += '/'
         self.token_life = int(conf.get('token_life', 86400))
-        self.allowed_sync_hosts = [
-            h.strip()
-            for h in conf.get('allowed_sync_hosts', '127.0.0.1').split(',')
-            if h.strip()]
         self.allow_overrides = config_true_value(
             conf.get('allow_overrides', 't'))
         self.storage_url_scheme = conf.get('storage_url_scheme', 'default')
@@ -263,9 +259,7 @@ class TempAuth(object):
         if (req.environ.get('swift_sync_key') and
             req.environ['swift_sync_key'] ==
                 req.headers.get('x-container-sync-key', None) and
-            'x-timestamp' in req.headers and
-            (req.remote_addr in self.allowed_sync_hosts or
-             get_remote_client(req) in self.allowed_sync_hosts)):
+            'x-timestamp' in req.headers):
             return None
         if req.method == 'OPTIONS':
             #allow OPTIONS requests to proceed as normal
diff --git a/test/unit/common/middleware/test_tempauth.py b/test/unit/common/middleware/test_tempauth.py
index 241035b978..7f5804d72f 100644
--- a/test/unit/common/middleware/test_tempauth.py
+++ b/test/unit/common/middleware/test_tempauth.py
@@ -472,17 +472,6 @@ class TestAuth(unittest.TestCase):
         self.assertEquals(resp.headers['x-storage-url'],
                           'fake://somehost:5678/v1/AUTH_test')
 
-    def test_allowed_sync_hosts(self):
-        a = auth.filter_factory({'super_admin_key': 'supertest'})(FakeApp())
-        self.assertEquals(a.allowed_sync_hosts, ['127.0.0.1'])
-        a = auth.filter_factory(
-            {'super_admin_key': 'supertest',
-             'allowed_sync_hosts':
-                '1.1.1.1,2.1.1.1, 3.1.1.1 , 4.1.1.1,, , 5.1.1.1'})(FakeApp())
-        self.assertEquals(
-            a.allowed_sync_hosts,
-            ['1.1.1.1', '2.1.1.1', '3.1.1.1', '4.1.1.1', '5.1.1.1'])
-
     def test_reseller_admin_is_owner(self):
         orig_authorize = self.test_auth.authorize
         owner_values = []
@@ -593,18 +582,6 @@ class TestAuth(unittest.TestCase):
         resp = req.get_response(self.test_auth)
         self.assertEquals(resp.status_int, 401)
 
-    def test_sync_request_fail_sync_host(self):
-        self.test_auth.app = FakeApp(iter([('204 No Content', {}, '')]),
-                                     sync_key='secret')
-        req = self._make_request(
-            '/v1/AUTH_cfa/c/o',
-            environ={'REQUEST_METHOD': 'DELETE'},
-            headers={'x-container-sync-key': 'secret',
-                     'x-timestamp': '123.456'})
-        req.remote_addr = '127.0.0.2'
-        resp = req.get_response(self.test_auth)
-        self.assertEquals(resp.status_int, 401)
-
     def test_sync_request_success_lb_sync_host(self):
         self.test_auth.app = FakeApp(iter([('204 No Content', {}, '')]),
                                      sync_key='secret')