Cloud based router with policy enforcement. In some implementations, a system is provided. The system includes a plurality of access points. The plurality of access points receive data packets from a plurality of client devices. The system also includes a plurality of tunnel devices coupled to the plurality of access points. The plurality of tunnel devices generate encapsulated packets based on the data packets received by the plurality of access points. The system further includes a plurality of packet forwarding components coupled to the plurality of tunnel devices via a first set of tunnels. The plurality of packet forwarding components receive the encapsulated packets from the plurality of tunnel devices and forward the encapsulate packets. The system further includes a plurality of network access controllers coupled to the plurality of packet forwarding components via a second set of tunnels. The plurality of network access controllers enforce one or more network policies for the plurality of client devices, as the plurality of client devices move between the plurality of access points.