Apparatuses, methods, and systems are disclosed for establishing data paths over multiple access network for a multi-access data connection. One apparatus includes a processor and a transceiver that communicates with one or more network functions in a mobile communication network. The processor receives a first session management request via an AMF. Here, the first session management request contains a second session management request sent by a remote unit that communicates with the mobile communication network over a first access network and a second access network, second session management request being sent over the second access network. The processor 405 sends a first request to the access management function to establish a first data path for a multi-access data connection over the first access network and sends a second request to the access management function to establish a second data path for the multi-access data connection over the second access network. Here, both the first data path and the second data path are anchored at a common user plane network function in the mobile communication network.