A method for establishing a connection between a mobility management entity and a node of a network includes acquiring, at the mobility management entity, an address of the node, transmitting a session creation request from the mobility management entity to a serving gateway, receiving, at the mobility management entity, a session creation response from the serving gateway in response to the session creation request, the session creation response including uplink bearer information for data transmission to the serving gateway and an address allocated to the mobility management entity by a packet data network gateway, transmitting, at the mobility management entity, downlink bearer information for data reception from the serving gateway to the serving gateway, and communicating, at the mobility management entity, with the node using the address of the mobility management entity and the address of the node according to the uplink bearer information and the downlink bearer information.