Verfahren, vorrichtung und system zur lokalen netzwerkkommunikation

Abstract

Embodiments of this application provide a local area network communication method, a device, and a system, to implement private communication across session management network elements for a local area network service. The method includes: determining, by a service management network element based on indication information of a local area network, first path information associated with a first address, where the first path information is used by a second user plane network element to route data whose destination address is the first address to a first user plane network element, and the first user plane network element provides access to the local area network for a terminal corresponding to the first address; and sending, by the service management network element, a first message to a second session management network element, for configuring a first routing rule on the second user plane network element, where the first routing rule includes the indication information of the local area network, the first address, and the first path information.