diff --git a/cli/src/main/java/org/onlab/onos/cli/NodeAddCommand.java b/cli/src/main/java/org/onlab/onos/cli/NodeAddCommand.java
index aec77ff..e54081c 100644
--- a/cli/src/main/java/org/onlab/onos/cli/NodeAddCommand.java
+++ b/cli/src/main/java/org/onlab/onos/cli/NodeAddCommand.java
@@ -22,7 +22,7 @@
 import org.apache.karaf.shell.commands.Command;
 import org.onlab.onos.cluster.ClusterAdminService;
 import org.onlab.onos.cluster.NodeId;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 /**
  * Adds a new controller cluster node.
@@ -46,7 +46,7 @@
     @Override
     protected void execute() {
         ClusterAdminService service = get(ClusterAdminService.class);
-        service.addNode(new NodeId(nodeId), IpPrefix.valueOf(ip), tcpPort);
+        service.addNode(new NodeId(nodeId), IpAddress.valueOf(ip), tcpPort);
     }
 
 }
diff --git a/core/api/src/main/java/org/onlab/onos/cluster/ClusterAdminService.java b/core/api/src/main/java/org/onlab/onos/cluster/ClusterAdminService.java
index 73137e1..997de08 100644
--- a/core/api/src/main/java/org/onlab/onos/cluster/ClusterAdminService.java
+++ b/core/api/src/main/java/org/onlab/onos/cluster/ClusterAdminService.java
@@ -1,6 +1,6 @@
 package org.onlab.onos.cluster;
 
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 /**
  * Service for administering the cluster node membership.
@@ -15,7 +15,7 @@
      * @param tcpPort tcp listen port
      * @return newly added node
      */
-    ControllerNode addNode(NodeId nodeId, IpPrefix ip, int tcpPort);
+    ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort);
 
     /**
      * Removes the specified node from the cluster node list.
diff --git a/core/api/src/main/java/org/onlab/onos/cluster/ClusterStore.java b/core/api/src/main/java/org/onlab/onos/cluster/ClusterStore.java
index 3725706..debb38a 100644
--- a/core/api/src/main/java/org/onlab/onos/cluster/ClusterStore.java
+++ b/core/api/src/main/java/org/onlab/onos/cluster/ClusterStore.java
@@ -1,7 +1,7 @@
 package org.onlab.onos.cluster;
 
 import org.onlab.onos.store.Store;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import java.util.Set;
 
@@ -48,7 +48,7 @@
      * @param tcpPort tcp listen port
      * @return newly added node
      */
-    ControllerNode addNode(NodeId nodeId, IpPrefix ip, int tcpPort);
+    ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort);
 
     /**
      * Removes the specified node from the inventory of cluster nodes.
diff --git a/core/api/src/main/java/org/onlab/onos/cluster/ControllerNode.java b/core/api/src/main/java/org/onlab/onos/cluster/ControllerNode.java
index 33fe1c9..00e3346 100644
--- a/core/api/src/main/java/org/onlab/onos/cluster/ControllerNode.java
+++ b/core/api/src/main/java/org/onlab/onos/cluster/ControllerNode.java
@@ -1,6 +1,6 @@
 package org.onlab.onos.cluster;
 
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 /**
  * Represents a controller instance as a member in a cluster.
@@ -33,7 +33,7 @@
      *
      * @return IP address
      */
-    IpPrefix ip();
+    IpAddress ip();
 
 
     /**
diff --git a/core/api/src/main/java/org/onlab/onos/cluster/DefaultControllerNode.java b/core/api/src/main/java/org/onlab/onos/cluster/DefaultControllerNode.java
index d23b7a3..6cb4f24 100644
--- a/core/api/src/main/java/org/onlab/onos/cluster/DefaultControllerNode.java
+++ b/core/api/src/main/java/org/onlab/onos/cluster/DefaultControllerNode.java
@@ -1,6 +1,6 @@
 package org.onlab.onos.cluster;
 
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import java.util.Objects;
 
@@ -14,7 +14,7 @@
     private static final int DEFAULT_PORT = 9876;
 
     private final NodeId id;
-    private final IpPrefix ip;
+    private final IpAddress ip;
     private final int tcpPort;
 
     // For serialization
@@ -30,7 +30,7 @@
      * @param id instance identifier
      * @param ip instance IP address
      */
-    public DefaultControllerNode(NodeId id, IpPrefix ip) {
+    public DefaultControllerNode(NodeId id, IpAddress ip) {
         this(id, ip, DEFAULT_PORT);
     }
 
@@ -40,7 +40,7 @@
      * @param id instance identifier
      * @param ip instance IP address
      */
-    public DefaultControllerNode(NodeId id, IpPrefix ip, int tcpPort) {
+    public DefaultControllerNode(NodeId id, IpAddress ip, int tcpPort) {
         this.id = id;
         this.ip = ip;
         this.tcpPort = tcpPort;
@@ -52,7 +52,7 @@
     }
 
     @Override
-    public IpPrefix ip() {
+    public IpAddress ip() {
         return ip;
     }
 
diff --git a/core/api/src/test/java/org/onlab/onos/cluster/ControllerNodeToNodeIdTest.java b/core/api/src/test/java/org/onlab/onos/cluster/ControllerNodeToNodeIdTest.java
index b95dcfc..075de3c 100644
--- a/core/api/src/test/java/org/onlab/onos/cluster/ControllerNodeToNodeIdTest.java
+++ b/core/api/src/test/java/org/onlab/onos/cluster/ControllerNodeToNodeIdTest.java
@@ -8,7 +8,7 @@
 import java.util.List;
 
 import org.junit.Test;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import com.google.common.collect.FluentIterable;
 
@@ -19,9 +19,9 @@
     private static final NodeId NID2 = new NodeId("bar");
     private static final NodeId NID3 = new NodeId("buz");
 
-    private static final IpPrefix IP1 = IpPrefix.valueOf("127.0.0.1");
-    private static final IpPrefix IP2 = IpPrefix.valueOf("127.0.0.2");
-    private static final IpPrefix IP3 = IpPrefix.valueOf("127.0.0.3");
+    private static final IpAddress IP1 = IpAddress.valueOf("127.0.0.1");
+    private static final IpAddress IP2 = IpAddress.valueOf("127.0.0.2");
+    private static final IpAddress IP3 = IpAddress.valueOf("127.0.0.3");
 
     private static final ControllerNode CN1 = new DefaultControllerNode(NID1, IP1);
     private static final ControllerNode CN2 = new DefaultControllerNode(NID2, IP2);
diff --git a/core/net/src/main/java/org/onlab/onos/cluster/impl/ClusterManager.java b/core/net/src/main/java/org/onlab/onos/cluster/impl/ClusterManager.java
index 36f2f7e..8368684 100644
--- a/core/net/src/main/java/org/onlab/onos/cluster/impl/ClusterManager.java
+++ b/core/net/src/main/java/org/onlab/onos/cluster/impl/ClusterManager.java
@@ -16,7 +16,7 @@
 import org.onlab.onos.cluster.NodeId;
 import org.onlab.onos.event.AbstractListenerRegistry;
 import org.onlab.onos.event.EventDeliveryService;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 import org.slf4j.Logger;
 
 import java.util.Set;
@@ -83,7 +83,7 @@
     }
 
     @Override
-    public ControllerNode addNode(NodeId nodeId, IpPrefix ip, int tcpPort) {
+    public ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort) {
         checkNotNull(nodeId, INSTANCE_ID_NULL);
         checkNotNull(ip, "IP address cannot be null");
         checkArgument(tcpPort > 5000, "TCP port must be > 5000");
diff --git a/core/net/src/test/java/org/onlab/onos/cluster/impl/MastershipManagerTest.java b/core/net/src/test/java/org/onlab/onos/cluster/impl/MastershipManagerTest.java
index 96b8ae0..4e1f905 100644
--- a/core/net/src/test/java/org/onlab/onos/cluster/impl/MastershipManagerTest.java
+++ b/core/net/src/test/java/org/onlab/onos/cluster/impl/MastershipManagerTest.java
@@ -16,7 +16,7 @@
 import org.onlab.onos.mastership.MastershipTermService;
 import org.onlab.onos.net.DeviceId;
 import org.onlab.onos.store.trivial.impl.SimpleMastershipStore;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import com.google.common.collect.Sets;
 
@@ -31,7 +31,7 @@
 
     private static final NodeId NID_LOCAL = new NodeId("local");
     private static final NodeId NID_OTHER = new NodeId("foo");
-    private static final IpPrefix LOCALHOST = IpPrefix.valueOf("127.0.0.1");
+    private static final IpAddress LOCALHOST = IpAddress.valueOf("127.0.0.1");
     private static final DeviceId DEV_MASTER = DeviceId.deviceId("of:1");
     private static final DeviceId DEV_OTHER = DeviceId.deviceId("of:2");
 
diff --git a/core/net/src/test/java/org/onlab/onos/net/device/impl/DeviceManagerTest.java b/core/net/src/test/java/org/onlab/onos/net/device/impl/DeviceManagerTest.java
index a86502f..86b59d7 100644
--- a/core/net/src/test/java/org/onlab/onos/net/device/impl/DeviceManagerTest.java
+++ b/core/net/src/test/java/org/onlab/onos/net/device/impl/DeviceManagerTest.java
@@ -38,7 +38,7 @@
 import org.onlab.onos.net.provider.ProviderId;
 import org.onlab.onos.store.trivial.impl.SimpleDeviceStore;
 import org.onlab.packet.ChassisId;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import java.util.ArrayList;
 import java.util.Iterator;
@@ -69,7 +69,7 @@
     private static final PortNumber P2 = PortNumber.portNumber(2);
     private static final PortNumber P3 = PortNumber.portNumber(3);
     private static final NodeId NID_LOCAL = new NodeId("local");
-    private static final IpPrefix LOCALHOST = IpPrefix.valueOf("127.0.0.1");
+    private static final IpAddress LOCALHOST = IpAddress.valueOf("127.0.0.1");
 
     private DeviceManager mgr;
 
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/ClusterDefinitionStore.java b/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/ClusterDefinitionStore.java
index f38df5a..edd716c 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/ClusterDefinitionStore.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/ClusterDefinitionStore.java
@@ -8,7 +8,7 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.onlab.onos.cluster.DefaultControllerNode;
 import org.onlab.onos.cluster.NodeId;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import java.io.File;
 import java.io.IOException;
@@ -46,7 +46,7 @@
         while (it.hasNext()) {
             ObjectNode nodeDef = (ObjectNode) it.next();
             nodes.add(new DefaultControllerNode(new NodeId(nodeDef.get("id").asText()),
-                                                IpPrefix.valueOf(nodeDef.get("ip").asText()),
+                                                IpAddress.valueOf(nodeDef.get("ip").asText()),
                                                 nodeDef.get("tcpPort").asInt(9876)));
         }
         return nodes;
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/ClusterNodesDelegate.java b/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/ClusterNodesDelegate.java
index daef7bd..4037050 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/ClusterNodesDelegate.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/ClusterNodesDelegate.java
@@ -2,7 +2,7 @@
 
 import org.onlab.onos.cluster.DefaultControllerNode;
 import org.onlab.onos.cluster.NodeId;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 // Not used right now
 /**
@@ -19,7 +19,8 @@
      * @param tcpPort node TCP listen port
      * @return the controller node
      */
-    DefaultControllerNode nodeDetected(NodeId nodeId, IpPrefix ip, int tcpPort);
+    DefaultControllerNode nodeDetected(NodeId nodeId, IpAddress ip,
+                                       int tcpPort);
 
     /**
      * Notifies about cluster node going offline.
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java b/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java
index 59267d1..07a3e6b8 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java
@@ -22,7 +22,7 @@
 import org.onlab.onos.store.hz.AbsentInvalidatingLoadingCache;
 import org.onlab.onos.store.hz.AbstractHazelcastStore;
 import org.onlab.onos.store.hz.OptionalCacheLoader;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import java.util.Map;
 import java.util.Set;
@@ -105,7 +105,7 @@
     }
 
     @Override
-    public ControllerNode addNode(NodeId nodeId, IpPrefix ip, int tcpPort) {
+    public ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort) {
         return addNode(new DefaultControllerNode(nodeId, ip, tcpPort));
     }
 
@@ -127,13 +127,13 @@
 
     // Creates a controller node descriptor from the Hazelcast member.
     private DefaultControllerNode node(Member member) {
-        IpPrefix ip = memberAddress(member);
+        IpAddress ip = memberAddress(member);
         return new DefaultControllerNode(new NodeId(ip.toString()), ip);
     }
 
-    private IpPrefix memberAddress(Member member) {
+    private IpAddress memberAddress(Member member) {
         byte[] address = member.getSocketAddress().getAddress().getAddress();
-        return IpPrefix.valueOf(address);
+        return IpAddress.valueOf(address);
     }
 
     // Interceptor for membership events.
diff --git a/core/store/dist/src/test/java/org/onlab/onos/store/cluster/messaging/impl/ClusterCommunicationManagerTest.java b/core/store/dist/src/test/java/org/onlab/onos/store/cluster/messaging/impl/ClusterCommunicationManagerTest.java
index 34e5b3b..0ed82fd 100644
--- a/core/store/dist/src/test/java/org/onlab/onos/store/cluster/messaging/impl/ClusterCommunicationManagerTest.java
+++ b/core/store/dist/src/test/java/org/onlab/onos/store/cluster/messaging/impl/ClusterCommunicationManagerTest.java
@@ -8,7 +8,7 @@
 import org.onlab.onos.cluster.NodeId;
 import org.onlab.onos.store.cluster.impl.ClusterNodesDelegate;
 import org.onlab.netty.NettyMessagingService;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
@@ -27,7 +27,7 @@
     private static final int P1 = 9881;
     private static final int P2 = 9882;
 
-    private static final IpPrefix IP = IpPrefix.valueOf("127.0.0.1");
+    private static final IpAddress IP = IpAddress.valueOf("127.0.0.1");
 
     private ClusterCommunicationManager ccm1;
     private ClusterCommunicationManager ccm2;
@@ -104,7 +104,7 @@
         NodeId nodeId;
 
         @Override
-        public DefaultControllerNode nodeDetected(NodeId nodeId, IpPrefix ip, int tcpPort) {
+        public DefaultControllerNode nodeDetected(NodeId nodeId, IpAddress ip, int tcpPort) {
             latch(nodeId, Op.DETECTED);
             return new DefaultControllerNode(nodeId, ip, tcpPort);
         }
diff --git a/core/store/dist/src/test/java/org/onlab/onos/store/device/impl/GossipDeviceStoreTest.java b/core/store/dist/src/test/java/org/onlab/onos/store/device/impl/GossipDeviceStoreTest.java
index 975a7f8..a613cb2 100644
--- a/core/store/dist/src/test/java/org/onlab/onos/store/device/impl/GossipDeviceStoreTest.java
+++ b/core/store/dist/src/test/java/org/onlab/onos/store/device/impl/GossipDeviceStoreTest.java
@@ -55,7 +55,7 @@
 import org.onlab.onos.store.cluster.messaging.ClusterMessageHandler;
 import org.onlab.onos.store.cluster.messaging.MessageSubject;
 import org.onlab.packet.ChassisId;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Sets;
@@ -102,12 +102,12 @@
     // local node
     private static final NodeId NID1 = new NodeId("local");
     private static final ControllerNode ONOS1 =
-            new DefaultControllerNode(NID1, IpPrefix.valueOf("127.0.0.1"));
+            new DefaultControllerNode(NID1, IpAddress.valueOf("127.0.0.1"));
 
     // remote node
     private static final NodeId NID2 = new NodeId("remote");
     private static final ControllerNode ONOS2 =
-            new DefaultControllerNode(NID2, IpPrefix.valueOf("127.0.0.2"));
+            new DefaultControllerNode(NID2, IpAddress.valueOf("127.0.0.2"));
     private static final List<SparseAnnotations> NO_ANNOTATION = Collections.<SparseAnnotations>emptyList();
 
 
diff --git a/core/store/dist/src/test/java/org/onlab/onos/store/mastership/impl/DistributedMastershipStoreTest.java b/core/store/dist/src/test/java/org/onlab/onos/store/mastership/impl/DistributedMastershipStoreTest.java
index 4ecb8db..897a648 100644
--- a/core/store/dist/src/test/java/org/onlab/onos/store/mastership/impl/DistributedMastershipStoreTest.java
+++ b/core/store/dist/src/test/java/org/onlab/onos/store/mastership/impl/DistributedMastershipStoreTest.java
@@ -32,7 +32,7 @@
 import org.onlab.onos.store.hz.StoreService;
 import org.onlab.onos.store.hz.TestStoreManager;
 import org.onlab.onos.store.serializers.KryoSerializer;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 
 import com.google.common.collect.Sets;
 import com.hazelcast.config.Config;
@@ -47,7 +47,7 @@
     private static final DeviceId DID2 = DeviceId.deviceId("of:02");
     private static final DeviceId DID3 = DeviceId.deviceId("of:03");
 
-    private static final IpPrefix IP = IpPrefix.valueOf("127.0.0.1");
+    private static final IpAddress IP = IpAddress.valueOf("127.0.0.1");
 
     private static final NodeId N1 = new NodeId("node1");
     private static final NodeId N2 = new NodeId("node2");
diff --git a/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/SimpleClusterStore.java b/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/SimpleClusterStore.java
index 1363fd0..65dc0ab 100644
--- a/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/SimpleClusterStore.java
+++ b/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/SimpleClusterStore.java
@@ -12,7 +12,7 @@
 import org.onlab.onos.cluster.DefaultControllerNode;
 import org.onlab.onos.cluster.NodeId;
 import org.onlab.onos.store.AbstractStore;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 import org.slf4j.Logger;
 
 import java.util.Set;
@@ -29,7 +29,7 @@
         extends AbstractStore<ClusterEvent, ClusterStoreDelegate>
         implements ClusterStore {
 
-    public static final IpPrefix LOCALHOST = IpPrefix.valueOf("127.0.0.1");
+    public static final IpAddress LOCALHOST = IpAddress.valueOf("127.0.0.1");
 
     private final Logger log = getLogger(getClass());
 
@@ -68,7 +68,7 @@
     }
 
     @Override
-    public ControllerNode addNode(NodeId nodeId, IpPrefix ip, int tcpPort) {
+    public ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort) {
         return null;
     }
 
diff --git a/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/SimpleMastershipStore.java b/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/SimpleMastershipStore.java
index a0ac4c7..7125e50 100644
--- a/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/SimpleMastershipStore.java
+++ b/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/SimpleMastershipStore.java
@@ -26,7 +26,7 @@
 import org.onlab.onos.net.DeviceId;
 import org.onlab.onos.net.MastershipRole;
 import org.onlab.onos.store.AbstractStore;
-import org.onlab.packet.IpPrefix;
+import org.onlab.packet.IpAddress;
 import org.slf4j.Logger;
 
 import com.google.common.collect.Lists;
@@ -45,7 +45,7 @@
 
     private final Logger log = getLogger(getClass());
 
-    public static final IpPrefix LOCALHOST = IpPrefix.valueOf("127.0.0.1");
+    public static final IpAddress LOCALHOST = IpAddress.valueOf("127.0.0.1");
 
     private ControllerNode instance =
             new DefaultControllerNode(new NodeId("local"), LOCALHOST);