diff --git a/Tethering/tests/integration/src/android/net/EthernetTetheringTest.java b/Tethering/tests/integration/src/android/net/EthernetTetheringTest.java
index 919e246b2b..876b945616 100644
--- a/Tethering/tests/integration/src/android/net/EthernetTetheringTest.java
+++ b/Tethering/tests/integration/src/android/net/EthernetTetheringTest.java
@@ -1512,7 +1512,7 @@ public class EthernetTetheringTest {
         final TestDnsPacket dnsQuery = TestDnsPacket.getTestDnsPacket(buf);
         assertNotNull(dnsQuery);
         Log.d(TAG, "Forwarded UDP source port: " + udpHeader.srcPort + ", DNS query id: "
-                + dnsQuery.getHeader().getId());
+                + dnsQuery.getHeader().id);
 
         // [2] Send DNS reply.
         // DNS server --> upstream --> dnsmasq forwarding --> downstream --> tethered device
@@ -1522,7 +1522,7 @@ public class EthernetTetheringTest {
         final Inet4Address remoteIp = (Inet4Address) TEST_IP4_DNS;
         final Inet4Address tetheringUpstreamIp = (Inet4Address) TEST_IP4_ADDR.getAddress();
         sendDownloadPacketDnsV4(remoteIp, tetheringUpstreamIp, DNS_PORT,
-                (short) udpHeader.srcPort, (short) dnsQuery.getHeader().getId(), tester);
+                (short) udpHeader.srcPort, (short) dnsQuery.getHeader().id, tester);
     }
 
     private <T> List<T> toList(T... array) {
diff --git a/framework/src/android/net/DnsResolver.java b/framework/src/android/net/DnsResolver.java
index 33722fc52d..382a9deb3b 100644
--- a/framework/src/android/net/DnsResolver.java
+++ b/framework/src/android/net/DnsResolver.java
@@ -544,7 +544,7 @@ public final class DnsResolver {
 
         DnsAddressAnswer(@NonNull byte[] data) throws ParseException {
             super(data);
-            if ((mHeader.getFlags() & (1 << 15)) == 0) {
+            if ((mHeader.flags & (1 << 15)) == 0) {
                 throw new ParseException("Not an answer packet");
             }
             if (mHeader.getRecordCount(QDSECTION) == 0) {
diff --git a/tests/cts/net/src/android/net/cts/DnsResolverTest.java b/tests/cts/net/src/android/net/cts/DnsResolverTest.java
index 3821ceab7d..0c5341193b 100644
--- a/tests/cts/net/src/android/net/cts/DnsResolverTest.java
+++ b/tests/cts/net/src/android/net/cts/DnsResolverTest.java
@@ -200,13 +200,13 @@ public class DnsResolverTest {
             super(data);
 
             // Check QR field.(query (0), or a response (1)).
-            if ((mHeader.getFlags() & (1 << 15)) == 0) {
+            if ((mHeader.flags & (1 << 15)) == 0) {
                 throw new DnsParseException("Not an answer packet");
             }
         }
 
         int getRcode() {
-            return mHeader.getFlags() & 0x0F;
+            return mHeader.rcode;
         }
 
         int getANCount() {