Providing communication connectivity between disparate network entities located in isolated communication networks through a centralized cloud service

A system for providing communication connectivity between network devices that are located in isolated communication networks through a centralized cloud service, comprising:

• at least one source server located in a source communication network, wherein the source server includes memory that stores program code for execution on processing circuitry of the source server, and wherein the program code stored in the memory of the source server includes a cloud service connector located in the source communication network;
• at least one cloud server computer located in a public communication network that is communicably connected to the source communication network, wherein the cloud server computer includes memory that stores program code for execution on processing circuity of the cloud server computer, and wherein the program code stored in the memory of the source server includes a cloud service;
• wherein the cloud service connector located in the source communication network is configured and arranged to:
• receive, from a source end point device located in the source communication network and that is separate and independent from the cloud service connector, an initial connection request message, wherein the initial connection request message requests a connection on a port number that is contained in the initial connection request,
• retrieve, in response to receipt of the initial connection request message and to the port number contained in the initial connection request message, i) a customer name, and ii) an indication of a requested service, wherein the retrieved customer name and indication of the requested service name each correspond to the port number contained in the initial connection request,
• create, using the customer name and the indication of the requested service, a tunnel connection request message, wherein the tunnel connection request message contains the customer name and the indication of the requested service, and
• transmit the tunnel connection request message to the cloud service located in a public communication network that is communicably connected to the source communication network;
• and
• wherein the cloud service is configured and arranged to:
• receive the tunnel connection request message, extract, in response to receipt of the tunnel connection request message, the customer name and the indication of the requested service from the tunnel connection request message,
• retrieve, further in response to receipt of the tunnel connection request message, and in response to the customer name and the indication of the requested service extracted from the tunnel connection request message, i) an identifier of a cloud service connector located in a destination communication network that corresponds to the customer name extracted from the tunnel connection request, and ii) an identifier of a destination end point device located in the destination communication network that provides the requested service, wherein the destination communication network is also communicably connected to the public communication network, and wherein network traffic on the destination communication network is isolated from network traffic on the source communication network, and
• convey network traffic between the source end point device and the destination end point device through the cloud service by tunneling packets over connections i) between the cloud service connector located in the source communication network and the cloud service and ii) between the cloud service and the cloud service connector located in the destination communication network.

A non-transitory computer readable medium storing program code for providing communication connectivity between network devices that are located in isolated communication networks through a centralized cloud service, wherein the program code, when executed by processing circuitry, causes the processing circuitry to perform a method of:

• receiving, from a source end point device located in a source communication network, by a cloud service connector located in the source communication network, an initial connection request message, wherein the initial connection request message requests a connection on a port number that is contained in the initial connection request, and wherein the cloud service connector is separate and independent from the source end point device;
• retrieving, by the cloud service connector located in the source communication network, in response to receipt of the initial connection request message and to the port number contained in the initial connection request message, i) a customer name, and ii) an indication of a requested service, wherein the retrieved customer name and indication of the requested service name each correspond to the port number contained in the initial connection request;
• creating, by the cloud service connector located in the source communication network using the customer name and the indication of the requested service, a tunnel connection request message, wherein the tunnel connection request message contains the customer name and the indication of the requested service;
• transmitting the tunnel connection request message, by the cloud service connector located in the source communication network, to a cloud service located in a public communication network that is communicably connected to the source communication network;
• receiving the tunnel connection request message by the cloud service;
• extracting, by the cloud service in response to receipt of the tunnel connection request message, the customer name and the indication of the requested service from the tunnel connection request message;
• retrieving, by the cloud service further in response to receipt of the tunnel connection request message, and in response to the customer name and the indication of the requested service extracted from the tunnel connection request message, i) an identifier of a cloud service connector located in a destination communication network that corresponds to the customer name extracted from the tunnel connection request, and ii) an identifier of a destination end point device located in the destination communication network that provides the requested service, wherein the destination communication network is also communicably connected to the public communication network, and wherein network traffic on the destination communication network is isolated from network traffic on the source communication network;
• and
• conveying network traffic between the source end point device and the destination end point device through the cloud service by tunneling packets over connections i) between the cloud service connector located in the source communication network and the cloud service and ii) between the cloud service and the cloud service connector located in the destination communication network.