This short tutorial focuses on the control of dynamic (or agile) optical networks. We begin by highlighting the motivation for such networks, their basic requirements, and the advantages of agility. We examine the functionality needed for routing and connection establishment in such dynamic networks, and compare possible candidates for the design of such a control plane. We then focus on IP routing and signaling protocols as a viable choice for the control plane, pointing out the implementation choices and architectural considerations in their deployment, and conclude with a look at open/unresolved issues that are currently under discussion at standards bodies such as the Internet Engineering Task Force (IETF).