diff --git a/src/main/java/net/onrc/onos/core/util/IPv4Net.java b/src/main/java/net/onrc/onos/core/util/IPv4Net.java
new file mode 100644
index 0000000..82f2fc6
--- /dev/null
+++ b/src/main/java/net/onrc/onos/core/util/IPv4Net.java
@@ -0,0 +1,114 @@
+package net.onrc.onos.core.util;
+
+import net.onrc.onos.core.util.serializers.IPv4NetDeserializer;
+import net.onrc.onos.core.util.serializers.IPv4NetSerializer;
+
+import org.codehaus.jackson.map.annotate.JsonDeserialize;
+import org.codehaus.jackson.map.annotate.JsonSerialize;
+
+/**
+ * The class representing an IPv4 network address.
+ */
+@JsonDeserialize(using=IPv4NetDeserializer.class)
+@JsonSerialize(using=IPv4NetSerializer.class)
+public class IPv4Net {
+    private IPv4 address;		// The IPv4 address
+    private short prefixLen;		// The prefix length
+
+    /**
+     * Default constructor.
+     */
+    public IPv4Net() {
+	this.prefixLen = 0;
+    }
+
+    /**
+     * Copy constructor.
+     *
+     * @param other the object to copy from.
+     */
+    public IPv4Net(IPv4Net other) {
+	if (other.address != null)
+	    this.address = new IPv4(other.address);
+	this.prefixLen = other.prefixLen;
+    }
+
+    /**
+     * Constructor for a given address and prefix length.
+     *
+     * @param address the address to use.
+     * @param prefixLen the prefix length to use.
+     */
+    public IPv4Net(IPv4 address, short prefixLen) {
+	this.address = address;
+	this.prefixLen = prefixLen;
+    }
+
+    /**
+     * Constructor from a string.
+     *
+     * @param value the value to use.
+     */
+    public IPv4Net(String value) {
+	String[] splits = value.split("/");
+	if (splits.length != 2) {
+	    throw new IllegalArgumentException("Specified IPv4Net address must contain an IPv4 " +
+					       "address and a prefix length separated by '/'");
+	}
+	this.address = new IPv4(splits[0]);
+	this.prefixLen = Short.decode(splits[1]);
+    }
+
+    /**
+     * Get the address value of the IPv4Net address.
+     *
+     * @return the address value of the IPv4Net address.
+     */
+    public IPv4 address() { return address; }
+
+    /**
+     * Set the address value of the IPv4Net address.
+     *
+     * @param address the address to use.
+     */
+    public void setAddress(IPv4 address) {
+	this.address = address;
+    }
+
+    /**
+     * Get the prefix length value of the IPv4Net address.
+     *
+     * @return the prefix length value of the IPv4Net address.
+     */
+    public short prefixLen() { return prefixLen; }
+
+    /**
+     * Set the prefix length value of the IPv4Net address.
+     *
+     * @param prefixLen the prefix length to use.
+     */
+    public void setPrefixLen(short prefixLen) {
+	this.prefixLen = prefixLen;
+    }
+
+    /**
+     * Set the value of the IPv4Net address.
+     *
+     * @param address the address to use.
+     * @param prefixLen the prefix length to use.
+     */
+    public void setValue(IPv4 address, short prefixLen) {
+	this.address = address;
+	this.prefixLen = prefixLen;
+    }
+
+    /**
+     * Convert the IPv4Net value to an "address/prefixLen" string.
+     *
+     * @return the IPv4Net value as an "address/prefixLen" string.
+     */
+    @Override
+    public String toString() {
+	return this.address.toString() + "/" + this.prefixLen;
+    }
+}