With the advance of ubiquitous society including IPv6, it is expected that everything will be connected to the networking environment. Then, a ubiquitous grid networking environment (uGrid) has been proposed. In uGrid, everything from a device to a program is defined as "Service-Part", and new mash-up services can be provided by connecting several Service-Parts. In this paper, IP Routing/Signaling-based uGrid service provisioning is proposed as a new concept for realizing uGrid. The feature of this concept is to assign IP addresses to Service-Parts and execute uGrid service provisioning in the network layer (IP protocol layer). IP protocol is an originally scalable protocol. Also, many sophisticated technologies accumulated for years can be used in IP protocol. Therefore, by using IP protocol, the construction of scalable and intelligent uGrid is expected. As key techniques, Service Routing and Service Signaling are introduced, and the issues of each technique are listed. By experiment, it was confirmed that the provisioning of a simple video grid service was succeeded by Service Signaling.