diff --git a/config/main.py b/config/main.py
index 3daf93c73d..888b0fe3cc 100755
--- a/config/main.py
+++ b/config/main.py
@@ -4009,6 +4009,8 @@ def add_route(ctx, command_str):
     # If defined intf name, check if it belongs to interface
     if 'ifname' in route:
         if (not route['ifname'] in config_db.get_keys('VLAN_INTERFACE') and
+            not route['ifname'] in config_db.get_keys('VLAN') and
+            not route['ifname'] in config_db.get_keys('VLAN_INTERFACE') and
             not route['ifname'] in config_db.get_keys('INTERFACE') and
             not route['ifname'] in config_db.get_keys('PORTCHANNEL_INTERFACE') and
             not route['ifname'] == 'null'):
@@ -4054,6 +4056,9 @@ def add_route(ctx, command_str):
     # Check if exist entry with key
     keys = config_db.get_keys('STATIC_ROUTE')
     if key in keys:
+        if 'null' in route['ifname']:
+             ctx.fail("this route is already configured on nexthop, remove it before configuring to black hole")
+
         # If exist update current entry
         current_entry = config_db.get_entry('STATIC_ROUTE', key)
 
diff --git a/tests/static_routes_test.py b/tests/static_routes_test.py
index c354cb97c4..fe8507b0ba 100644
--- a/tests/static_routes_test.py
+++ b/tests/static_routes_test.py
@@ -25,6 +25,9 @@
 ERROR_INVALID_IP = '''
 Error: ip address is not valid.
 '''
+ERROR_BLACKHOLE = '''
+Error: this route is already configured on nexthop, remove it before configuring to black hole
+'''
 
 
 class TestStaticRoutes(object):
@@ -358,6 +361,70 @@ def test_del_entire_ECMP_static_route(self):
         print(result.exit_code, result.output)
         assert not '14.2.3.4/32' in db.cfgdb.get_table('STATIC_ROUTE')
 
+    def test_static_route_blackhole_with_nexthop(self):
+        db = Db()
+        runner = CliRunner()
+        obj = {'config_db':db.cfgdb}
+
+        # config route add prefix 15.2.3.4/32 nexthop 30.0.0.5
+        result = runner.invoke(config.config.commands["route"].commands["add"], \
+        ["prefix", "15.2.3.4/32", "nexthop", "30.0.0.5"], obj=obj)
+        print(result.exit_code, result.output)
+        assert ('15.2.3.4/32') in db.cfgdb.get_table('STATIC_ROUTE')
+        assert db.cfgdb.get_entry('STATIC_ROUTE', '15.2.3.4/32') == {'nexthop': '30.0.0.5', 'blackhole': 'false', 'distance': '0', 'ifname': '', 'nexthop-vrf': ''}
+
+        # config route add prefix 15.2.3.4/32 dev null
+        result = runner.invoke(config.config.commands["route"].commands["add"], \
+        ["prefix", "15.2.3.4/32", "nexthop", "dev", "null"], obj=obj)
+        print(result.exit_code, result.output)
+        assert ERROR_BLACKHOLE in result.output
+
+    def test_static_route_dev_ethernet(self):
+        db = Db()
+        runner = CliRunner()
+        obj = {'config_db':db.cfgdb}
+
+        # config route add prefix 16.2.3.4/32 nexthop dev Ethernet0
+        result = runner.invoke(config.config.commands["route"].commands["add"], \
+        ["prefix", "16.2.3.4/32", "nexthop", "dev", "Ethernet0"], obj=obj)
+        print(result.exit_code, result.output)
+        assert ('16.2.3.4/32') in db.cfgdb.get_table('STATIC_ROUTE')
+        assert db.cfgdb.get_entry('STATIC_ROUTE', '16.2.3.4/32') == {'nexthop': '', 'blackhole': 'false', 'distance': '0', 'ifname': 'Ethernet0', 'nexthop-vrf': ''}
+
+        # config route del prefix 16.2.3.4/32 nexthop dev Ethernet0
+        result = runner.invoke(config.config.commands["route"].commands["del"], \
+        ["prefix", "16.2.3.4/32", "nexthop", "dev", "Ethernet0"], obj=obj)
+        print(result.exit_code, result.output)
+        assert not '16.2.3.4/32' in db.cfgdb.get_table('STATIC_ROUTE')
+
+    def test_static_route_dev_vlan(self):
+        db = Db()
+        runner = CliRunner()
+        obj = {'config_db':db.cfgdb}
+
+        # config vlan add 40
+        result = runner.invoke(config.config.commands["vlan"].commands["add"], ["4016"], obj=db)
+        print(result.exit_code, result.output)
+        assert ('Vlan4016') in db.cfgdb.get_table('VLAN')
+
+        # config route add prefix 16.2.3.4/32 nexthop dev Vlan4016
+        result = runner.invoke(config.config.commands["route"].commands["add"], \
+        ["prefix", "16.2.3.4/32", "nexthop", "dev", "Vlan4016"], obj=obj)
+        print(result.exit_code, result.output)
+        assert ('16.2.3.4/32') in db.cfgdb.get_table('STATIC_ROUTE')
+        assert db.cfgdb.get_entry('STATIC_ROUTE', '16.2.3.4/32') == {'nexthop': '', 'blackhole': 'false', 'distance': '0', 'ifname': 'Vlan4016', 'nexthop-vrf': ''}
+
+        # config route del prefix 16.2.3.4/32 nexthop dev Vlan4016
+        result = runner.invoke(config.config.commands["route"].commands["del"], \
+        ["prefix", "16.2.3.4/32", "nexthop", "dev", "Vlan4016"], obj=obj)
+        print(result.exit_code, result.output)
+        assert not '16.2.3.4/32' in db.cfgdb.get_table('STATIC_ROUTE')
+
+        # config vlan del 4016
+        result = runner.invoke(config.config.commands["vlan"].commands["del"], ["4016"], obj=db)
+        print(result.exit_code, result.output)
+        assert not ('Vlan4016') in db.cfgdb.get_table('VLAN')
+
     @classmethod
     def teardown_class(cls):
         os.environ['UTILITIES_UNIT_TESTING'] = "0"