Today, huge amount of Internet tra?c is being transferred through the mobile networks, therefore new solutions are needed to deal with mobility of users. In these Networks, the mobility management protocol is responsible to track the location of users and establish the required connections between them. Current mobility management protocols use two approaches to establish a route between the mobile users. In the ?rst approach (Optimal method) the mobility management protocol recalculates the routes for a mobile source to send data to its destinations every time the source moves. The problem with this approach is that the recalculation of the routes is a complex and time consuming task especially for multicast routing. The second approach is called the Tunneling method. In this method when a source moves from one access point to another one, the mobility management protocol creates a tunnel between these two access points and the source sends its data through this tunnel. The problem with this method is that it increases the delay in delivering the data to the destinations. In this research, a new mobility management protocol for managing the mobility of source in a multicast commu- nication is introduced. The new mobility management protocol called partial recon?guration is aimed to be used in Mobile Software De?ned Networks. Using this method, each time the source moves the mobility management protocol only recalculates some parts of multicast tree instead of the whole tree so it is less time consuming than the optimal method. The Multicast tree of the the proposed method uses less bandwidth than the multicast tree of tunneling method. Simulations show that the bandwidth used by the multicast tree of partial recon?guration method can be very close to the bandwidth used by an optimal method. Software Defined Networking, Mobility Management, Routing, Multicast, Graph Theory