diff --git a/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/util/RulePopulatorUtil.java b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/util/RulePopulatorUtil.java
new file mode 100644
index 0000000..f005c5f
--- /dev/null
+++ b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/util/RulePopulatorUtil.java
@@ -0,0 +1,210 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.util;
+
+import org.onlab.packet.Ip4Address;
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.behaviour.ExtensionTreatmentResolver;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.flow.instructions.ExtensionPropertyException;
+import org.onosproject.net.flow.instructions.ExtensionTreatment;
+import org.slf4j.Logger;
+
+import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_LOAD;
+import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_MOV_ARP_SHA_TO_THA;
+import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_MOV_ARP_SPA_TO_TPA;
+import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_MOV_ETH_SRC_TO_DST;
+import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_MOV_IP_SRC_TO_DST;
+import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_SET_TUNNEL_DST;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Provides common methods to help populating flow rules for SONA applications.
+ */
+public final class RulePopulatorUtil {
+
+    private static final Logger log = getLogger(RulePopulatorUtil.class);
+
+    private static final int OFF_SET_BIT = 0;
+    private static final int REMAINDER_BIT = 8;
+
+    private static final String OFF_SET_N_BITS = "ofsNbits";
+    private static final String DESTINATION = "dst";
+    private static final String VALUE = "value";
+    private static final String TUNNEL_DST = "tunnelDst";
+
+    // layer 3 nicira fields
+    private static final int NXM_OF_IP_SRC = 0x00000e04;
+    private static final int NXM_OF_IP_DST = 0x00001004;
+    private static final int NXM_OF_IP_PROT = 0x00000c01;
+
+    public static final int NXM_NX_IP_TTL = 0x00013a01;
+    public static final int NXM_NX_IP_FRAG = 0x00013401;
+    public static final int NXM_OF_ARP_OP = 0x00001e02;
+    public static final int NXM_OF_ARP_SPA = 0x00002004;
+    public static final int NXM_OF_ARP_TPA = 0x00002204;
+    public static final int NXM_NX_ARP_SHA = 0x00012206;
+    public static final int NXM_NX_ARP_THA = 0x00012406;
+
+    // layer 4 nicira fields
+    public static final int NXM_OF_TCP_SRC = 0x00001202;
+    public static final int NXM_OF_TCP_DST = 0x00001402;
+    public static final int NXM_NX_TCP_FLAGS = 0x00014402;
+    public static final int NXM_OF_UDP_SRC = 0x00001602;
+    public static final int NXM_OF_UDP_DST = 0x00001802;
+
+    public static final int NXM_OF_ICMP_TYPE = 0x00001a01;
+    public static final int NXM_OF_ICMP_CODE = 0x00001c01;
+
+    private RulePopulatorUtil() {
+    }
+
+    /**
+     * Returns the nicira load extension treatment.
+     *
+     * @param device        device instance
+     * @param field         field code
+     * @param value         value to load
+     * @return load extension treatment
+     */
+    public static ExtensionTreatment buildLoadExtension(Device device,
+                                                        long field,
+                                                        long value) {
+        if (!checkTreatmentResolver(device)) {
+            return null;
+        }
+
+        ExtensionTreatmentResolver resolver = device.as(ExtensionTreatmentResolver.class);
+        ExtensionTreatment treatment =
+                resolver.getExtensionInstruction(NICIRA_LOAD.type());
+
+        int ofsNbits = OFF_SET_BIT << 6 | (REMAINDER_BIT - 1);
+
+        try {
+            treatment.setPropertyValue(OFF_SET_N_BITS, ofsNbits);
+            treatment.setPropertyValue(DESTINATION, field);
+            treatment.setPropertyValue(VALUE, value);
+            return treatment;
+        } catch (ExtensionPropertyException e) {
+            log.error("Failed to set nicira load extension treatment for {}",
+                    device.id());
+            return null;
+        }
+    }
+
+    /**
+     * Returns the nicira move source MAC to destination MAC extension treatment.
+     *
+     * @param device        device instance
+     * @return move extension treatment
+     */
+    public static ExtensionTreatment buildMoveEthSrcToDstExtension(Device device) {
+        if (!checkTreatmentResolver(device)) {
+            return null;
+        }
+
+        ExtensionTreatmentResolver resolver = device.as(ExtensionTreatmentResolver.class);
+        return resolver.getExtensionInstruction(NICIRA_MOV_ETH_SRC_TO_DST.type());
+    }
+
+    /**
+     * Returns the nicira move source IP to destination IP extension treatment.
+     *
+     * @param device        device instance
+     * @return move extension treatment
+     */
+    public static ExtensionTreatment buildMoveIpSrcToDstExtension(Device device) {
+        if (!checkTreatmentResolver(device)) {
+            return null;
+        }
+
+        ExtensionTreatmentResolver resolver = device.as(ExtensionTreatmentResolver.class);
+        return resolver.getExtensionInstruction(NICIRA_MOV_IP_SRC_TO_DST.type());
+    }
+
+    /**
+     * Returns the nicira move ARP SHA to THA extension treatment.
+     *
+     * @param device        device instance
+     * @return move extension treatment
+     */
+    public static ExtensionTreatment buildMoveArpShaToThaExtension(Device device) {
+        if (!checkTreatmentResolver(device)) {
+            return null;
+        }
+
+        ExtensionTreatmentResolver resolver = device.as(ExtensionTreatmentResolver.class);
+        return resolver.getExtensionInstruction(NICIRA_MOV_ARP_SHA_TO_THA.type());
+    }
+
+    /**
+     * Returns the nicira move ARP SPA to TPA extension treatment.
+     *
+     * @param device        device instance
+     * @return move extension treatment
+     */
+    public static ExtensionTreatment buildMoveArpSpaToTpaExtension(Device device) {
+        if (!checkTreatmentResolver(device)) {
+            return null;
+        }
+
+        ExtensionTreatmentResolver resolver = device.as(ExtensionTreatmentResolver.class);
+        return resolver.getExtensionInstruction(NICIRA_MOV_ARP_SPA_TO_TPA.type());
+    }
+
+    private static boolean checkTreatmentResolver(Device device) {
+        if (device == null || !device.is(ExtensionTreatmentResolver.class)) {
+            log.warn("Nicira extension treatment is not supported");
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Returns tunnel destination extension treatment object.
+     *
+     * @param deviceService driver service
+     * @param deviceId device id to apply this treatment
+     * @param remoteIp tunnel destination ip address
+     * @return extension treatment
+     */
+    public static ExtensionTreatment buildExtension(DeviceService deviceService,
+                                                    DeviceId deviceId,
+                                                    Ip4Address remoteIp) {
+        Device device = deviceService.getDevice(deviceId);
+        if (!checkTreatmentResolver(device)) {
+            return null;
+        }
+
+        if (device == null) {
+            return null;
+        }
+
+        ExtensionTreatmentResolver resolver = device.as(ExtensionTreatmentResolver.class);
+        ExtensionTreatment treatment =
+                resolver.getExtensionInstruction(NICIRA_SET_TUNNEL_DST.type());
+        try {
+            treatment.setPropertyValue(TUNNEL_DST, remoteIp);
+            return treatment;
+        } catch (ExtensionPropertyException e) {
+            log.warn("Failed to get tunnelDst extension treatment for {} " +
+                    "because of {}", deviceId, e);
+            return null;
+        }
+    }
+}