Fix for missing broadcast address on Linux Ethernet taps.

node/InetAddress.hpp

@@ -217,6 +217,14 @@ public:
 	InetAddress netmask() const
 		throw();
 
+	/**
+	 * Constructs a broadcast address from a network/netmask address
+	 *
+	 * @return Broadcast address (only IP portion is meaningful)
+	 */
+	InetAddress broadcast() const
+		throw();
+
 	/**
 	 * @return True if this is an IPv4 address
 	 */