diff --git a/apps/dhcprelay/app/src/main/java/org/onosproject/dhcprelay/OsgiPropertyConstants.java b/apps/dhcprelay/app/src/main/java/org/onosproject/dhcprelay/OsgiPropertyConstants.java
new file mode 100644
index 0000000..7e794fe
--- /dev/null
+++ b/apps/dhcprelay/app/src/main/java/org/onosproject/dhcprelay/OsgiPropertyConstants.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.dhcprelay;
+
+public final class OsgiPropertyConstants {
+    private OsgiPropertyConstants() {
+    }
+
+    static final String ARP_ENABLED = "arpEnabled";
+    static final boolean ARP_ENABLED_DEFAULT = true;
+
+    static final String DHCP_POLL_INTERVAL = "dhcpPollInterval";
+    static final int DHCP_POLL_INTERVAL_DEFAULT = 86400;
+
+    static final String DHCP_FPM_ENABLED = "dhcpFpmEnabled";
+    static final boolean DHCP_FPM_ENABLED_DEFAULT = false;
+
+    static final String LEARN_ROUTE_FROM_LEASE_QUERY = "learnRouteFromLeasequery";
+    static final boolean LEARN_ROUTE_FROM_LEASE_QUERY_DEFAULT = false;
+}