diff --git a/packages/Tethering/src/android/net/dhcp/DhcpServerCallbacks.java b/packages/Tethering/src/android/net/dhcp/DhcpServerCallbacks.java
index 7c41377985d3d..9fda1257b4c96 100644
--- a/packages/Tethering/src/android/net/dhcp/DhcpServerCallbacks.java
+++ b/packages/Tethering/src/android/net/dhcp/DhcpServerCallbacks.java
@@ -28,4 +28,9 @@ public abstract class DhcpServerCallbacks extends IDhcpServerCallbacks.Stub {
     public int getInterfaceVersion() {
         return IDhcpServerCallbacks.VERSION;
     }
+
+    @Override
+    public String getInterfaceHash() {
+        return IDhcpServerCallbacks.HASH;
+    }
 }
diff --git a/packages/Tethering/src/android/net/ip/IpServer.java b/packages/Tethering/src/android/net/ip/IpServer.java
index 190d250986442..f39e7af43ee64 100644
--- a/packages/Tethering/src/android/net/ip/IpServer.java
+++ b/packages/Tethering/src/android/net/ip/IpServer.java
@@ -301,6 +301,11 @@ public class IpServer extends StateMachine {
         public int getInterfaceVersion() {
             return this.VERSION;
         }
+
+        @Override
+        public String getInterfaceHash() {
+            return this.HASH;
+        }
     }
 
     private class DhcpServerCallbacksImpl extends DhcpServerCallbacks {
diff --git a/packages/Tethering/src/android/net/util/BaseNetdUnsolicitedEventListener.java b/packages/Tethering/src/android/net/util/BaseNetdUnsolicitedEventListener.java
index 3218c0b387bb4..b1ffdb01f5f30 100644
--- a/packages/Tethering/src/android/net/util/BaseNetdUnsolicitedEventListener.java
+++ b/packages/Tethering/src/android/net/util/BaseNetdUnsolicitedEventListener.java
@@ -67,4 +67,9 @@ public class BaseNetdUnsolicitedEventListener extends INetdUnsolicitedEventListe
     public int getInterfaceVersion() {
         return INetdUnsolicitedEventListener.VERSION;
     }
+
+    @Override
+    public String getInterfaceHash() {
+        return INetdUnsolicitedEventListener.HASH;
+    }
 }
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 478b87c010250..e98c370149a9c 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -2955,6 +2955,11 @@ public class ConnectivityService extends IConnectivityManager.Stub
         public int getInterfaceVersion() {
             return this.VERSION;
         }
+
+        @Override
+        public String getInterfaceHash() {
+            return this.HASH;
+        }
     }
 
     private boolean networkRequiresPrivateDnsValidation(NetworkAgentInfo nai) {
diff --git a/services/core/java/com/android/server/NetworkManagementService.java b/services/core/java/com/android/server/NetworkManagementService.java
index 1daed1b546833..33a82d873df9d 100644
--- a/services/core/java/com/android/server/NetworkManagementService.java
+++ b/services/core/java/com/android/server/NetworkManagementService.java
@@ -734,6 +734,11 @@ public class NetworkManagementService extends INetworkManagementService.Stub {
         public int getInterfaceVersion() {
             return INetdUnsolicitedEventListener.VERSION;
         }
+
+        @Override
+        public String getInterfaceHash() {
+            return INetdUnsolicitedEventListener.HASH;
+        }
     }
 
     //
diff --git a/services/core/java/com/android/server/connectivity/NetdEventListenerService.java b/services/core/java/com/android/server/connectivity/NetdEventListenerService.java
index dbc339b01c899..d15ebe092a084 100644
--- a/services/core/java/com/android/server/connectivity/NetdEventListenerService.java
+++ b/services/core/java/com/android/server/connectivity/NetdEventListenerService.java
@@ -310,6 +310,11 @@ public class NetdEventListenerService extends INetdEventListener.Stub {
         return this.VERSION;
     }
 
+    @Override
+    public String getInterfaceHash() {
+        return this.HASH;
+    }
+
     private void addWakeupEvent(WakeupEvent event) {
         String iface = event.iface;
         mWakeupEvents.append(event);
diff --git a/services/net/java/android/net/IpMemoryStore.java b/services/net/java/android/net/IpMemoryStore.java
index 6f91e006c853e..dcefb537d0a08 100644
--- a/services/net/java/android/net/IpMemoryStore.java
+++ b/services/net/java/android/net/IpMemoryStore.java
@@ -52,6 +52,11 @@ public class IpMemoryStore extends IpMemoryStoreClient {
                     public int getInterfaceVersion() {
                         return this.VERSION;
                     }
+
+                    @Override
+                    public String getInterfaceHash() {
+                        return this.HASH;
+                    }
                 });
     }
 
diff --git a/services/net/java/android/net/ip/IpClientUtil.java b/services/net/java/android/net/ip/IpClientUtil.java
index 7f723b1c232ba..a3618b47171a5 100644
--- a/services/net/java/android/net/ip/IpClientUtil.java
+++ b/services/net/java/android/net/ip/IpClientUtil.java
@@ -189,6 +189,11 @@ public class IpClientUtil {
         public int getInterfaceVersion() {
             return this.VERSION;
         }
+
+        @Override
+        public String getInterfaceHash() {
+            return this.HASH;
+        }
     }
 
     /**