Location-based service (LBS) is an information service that use location data to control features. Many kinds of location-based applications, such as route planning/navigation, social networking services, business services and indoor local information services, are widely deployed to handle many scenarios every day. In these applications, location-based marketing provides a great opportunity to increase revenues for brand marketers and retailers today because the applications of location-based marketing could improve the relevance by giving the customer control on what, when, where, and how customers receive ads. Based on the concept of location-based marketing, this study proposes a novel location-based smart marketing service that integrates IPv6-enabled locators, a mobile application and a smart marketing system. The IPv6-enabled locator is a new concept for all location-based advertising and marketing. The proposed system can obtain users' geographic information through the IPv6-enabled locators. To show the correctness of our system, we integrate IPv6-enabled locators and a smart marketing system in demonstrations.