diff --git a/src/main/java/net/floodlightcontroller/util/serializers/IPv4NetDeserializer.java b/src/main/java/net/floodlightcontroller/util/serializers/IPv4NetDeserializer.java
new file mode 100644
index 0000000..e35fc80
--- /dev/null
+++ b/src/main/java/net/floodlightcontroller/util/serializers/IPv4NetDeserializer.java
@@ -0,0 +1,43 @@
+package net.floodlightcontroller.util.serializers;
+
+import java.io.IOException;
+
+import org.codehaus.jackson.JsonNode;
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.JsonToken;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.ObjectCodec;
+import org.codehaus.jackson.map.JsonDeserializer;
+import org.codehaus.jackson.map.DeserializationContext;
+
+import net.floodlightcontroller.util.IPv4Net;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Deserialize an IPv4Net from a string.
+ */
+public class IPv4NetDeserializer extends JsonDeserializer<IPv4Net> {
+
+    protected static Logger log = LoggerFactory.getLogger(IPv4NetDeserializer.class);
+
+    @Override
+    public IPv4Net deserialize(JsonParser jp,
+			       DeserializationContext ctxt)
+	throws IOException, JsonProcessingException {
+
+	IPv4Net ipv4Net = null;
+
+	jp.nextToken();		// Move to JsonToken.START_OBJECT
+	while (jp.nextToken() != JsonToken.END_OBJECT) {
+	    String fieldname = jp.getCurrentName();
+	    if ("value".equals(fieldname)) {
+		String value = jp.getText();
+		log.debug("Fieldname: " + fieldname + " Value: " + value);
+		ipv4Net = new IPv4Net(value);
+	    }
+	}
+	return ipv4Net;
+    }
+}