There are many kinds of control networks based on non-IP, such as BA (Building Automation), FA (Factory Automation) and PA (Process Automation). The IPv6 and wireless technologies are expected to improve those networks. The IEEE 802.15.4 is a candidate for wireless technology in control networks because of its feature, e.g. low power consumption and small implementation. Seamless communication between both technologies is important, though it is not easy for IEEE 802.15.4 packet to carry IPv6 packet due to its limited features. This paper shows a translation method between IPv6 nodes and IEEE 802.15.4 nodes.