diff --git a/core/common/src/main/java/org/onosproject/codec/impl/EncodeCriterionCodecHelper.java b/core/common/src/main/java/org/onosproject/codec/impl/EncodeCriterionCodecHelper.java
index 83b25a7..067a99a 100644
--- a/core/common/src/main/java/org/onosproject/codec/impl/EncodeCriterionCodecHelper.java
+++ b/core/common/src/main/java/org/onosproject/codec/impl/EncodeCriterionCodecHelper.java
@@ -89,6 +89,7 @@
         formatMap.put(Criterion.Type.IN_PHY_PORT, new FormatInPort());
         formatMap.put(Criterion.Type.METADATA, new FormatMetadata());
         formatMap.put(Criterion.Type.ETH_DST, new FormatEth());
+        formatMap.put(Criterion.Type.ETH_DST_MASKED, new FormatEthMasked());
         formatMap.put(Criterion.Type.ETH_SRC, new FormatEth());
         formatMap.put(Criterion.Type.ETH_TYPE, new FormatEthType());
         formatMap.put(Criterion.Type.VLAN_VID, new FormatVlanVid());
@@ -146,7 +147,6 @@
         formatMap.put(Criterion.Type.ACTSET_OUTPUT, new FormatUnknown());
         formatMap.put(Criterion.Type.PACKET_TYPE, new FormatUnknown());
         formatMap.put(Criterion.Type.EXTENSION, new FormatUnknown());
-        formatMap.put(Criterion.Type.ETH_DST_MASKED, new FormatUnknown());
         formatMap.put(Criterion.Type.ETH_SRC_MASKED, new FormatUnknown());
         formatMap.put(Criterion.Type.TCP_SRC_MASKED, new FormatUnknown());
         formatMap.put(Criterion.Type.TCP_DST_MASKED, new FormatUnknown());
@@ -193,6 +193,17 @@
         }
     }
 
+    private static class FormatEthMasked implements CriterionTypeFormatter {
+        @Override
+        public ObjectNode encodeCriterion(ObjectNode root, Criterion criterion) {
+            final EthCriterion ethCriterion = (EthCriterion) criterion;
+            root.put(CriterionCodec.MAC, ethCriterion.mac().toString());
+            root.put(CriterionCodec.MAC_MASK, ethCriterion.mask().toString());
+
+            return root;
+        }
+    }
+
     private static class FormatEthType implements CriterionTypeFormatter {
         @Override
         public ObjectNode encodeCriterion(ObjectNode root, Criterion criterion) {