CPC H04L 12/4641 (2013.01) [H04L 12/4633 (2013.01); H04L 45/64 (2013.01); H04L 63/0485 (2013.01); H04L 63/0876 (2013.01); H04L 63/0892 (2013.01); H04W 12/03 (2021.01); H04L 12/66 (2013.01); H04L 63/0227 (2013.01); H04L 63/0245 (2013.01); H04L 63/164 (2013.01); H04W 12/009 (2019.01); H04W 12/088 (2021.01); H04W 84/12 (2013.01)] | 18 Claims |
1. A communication system comprising
a data center of a cloud operator, the data center providing a communication service to a terminal via a first wide area network to which the data center connects, and a wireless LAN (Local Area Network) to which the terminal connects, wherein the data center comprises:
a first gateway configured to connect with the terminal using a VPN (Virtual Private Network) established between the first gateway and the terminal through the first wide area network and the wireless LAN and terminate the VPN;
a second gateway configured to connect to a second wide area network,
a virtual network connected to the first gateway and the second gateway; and
a function block that is provided between the first gateway and the second gateway and that performs, based on filter information, filtering of a first packet transmitted by the terminal using the VPN and received by the first gateway from the first wide area network, and a second packet destined to the terminal and received by the second gateway from the second wide area network, the function block comprising a plurality of function blocks between the first gateway and the second gateway, each of the plurality of function blocks corresponding to one of a plurality of terminals accessing the data center via the VPN established between the terminal and the first gateway through the wireless LAN and the first wide area network.
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