diff --git a/apps/dhcp/src/main/java/org/onosproject/dhcp/rest/DHCPWebResource.java b/apps/dhcp/src/main/java/org/onosproject/dhcp/rest/DHCPWebResource.java
index fad6f9d..b18acd5 100644
--- a/apps/dhcp/src/main/java/org/onosproject/dhcp/rest/DHCPWebResource.java
+++ b/apps/dhcp/src/main/java/org/onosproject/dhcp/rest/DHCPWebResource.java
@@ -21,6 +21,7 @@
 import org.onlab.packet.Ip4Address;
 import org.onlab.packet.MacAddress;
 import org.onosproject.dhcp.DHCPService;
+import org.onosproject.dhcp.IPAssignment;
 import org.onosproject.rest.AbstractWebResource;
 
 import javax.ws.rs.Consumes;
@@ -71,11 +72,11 @@
     public Response listMappings() {
         ObjectNode root = mapper().createObjectNode();
 
-        final Map<MacAddress, Ip4Address> intents = service.listMapping();
+        final Map<MacAddress, IPAssignment> intents = service.listMapping();
         ArrayNode arrayNode = root.putArray("mappings");
         intents.entrySet().forEach(i -> arrayNode.add(mapper().createObjectNode()
                 .put("mac", i.getKey().toString())
-                .put("ip", i.getValue().toString())));
+                .put("ip", i.getValue().ipAddress().toString())));
 
         return ok(root.toString()).build();
     }
@@ -123,11 +124,11 @@
                 }
             }
 
-            final Map<MacAddress, Ip4Address> intents = service.listMapping();
+            final Map<MacAddress, IPAssignment> intents = service.listMapping();
             ArrayNode arrayNode = root.putArray("mappings");
             intents.entrySet().forEach(i -> arrayNode.add(mapper().createObjectNode()
                     .put("mac", i.getKey().toString())
-                    .put("ip", i.getValue().toString())));
+                    .put("ip", i.getValue().ipAddress().toString())));
         } catch (IOException e) {
             throw new IllegalArgumentException(e.getMessage());
         }
@@ -149,11 +150,11 @@
         if (!service.removeStaticMapping(MacAddress.valueOf(macID))) {
             throw new IllegalArgumentException("Static Mapping Removal Failed.");
         }
-        final Map<MacAddress, Ip4Address> intents = service.listMapping();
+        final Map<MacAddress, IPAssignment> intents = service.listMapping();
         ArrayNode arrayNode = root.putArray("mappings");
         intents.entrySet().forEach(i -> arrayNode.add(mapper().createObjectNode()
                 .put("mac", i.getKey().toString())
-                .put("ip", i.getValue().toString())));
+                .put("ip", i.getValue().ipAddress().toString())));
 
         return ok(root.toString()).build();
     }