Instead of using binary packet comparison, add a callback to the API to explicitly check whether paths should be used. Check in with this callback (if present) when learning new paths or sending initial packets.

node/InetAddress.hpp

@@ -325,6 +325,14 @@ struct InetAddress : public sockaddr_storage
 	 */
 	InetAddress network() const;
 
+	/**
+	 * Test whether this IP/netmask contains this address
+	 *
+	 * @param addr Address to check
+	 * @return True if this IP/netmask (route) contains this address
+	 */
+	bool containsAddress(const InetAddress &addr) const;
+
 	/**
 	 * @return True if this is an IPv4 address
 	 */