US 11,888,823 B2
Secured in-tunnel messages and access control
Bradford Lawrence Spencer, Hammonds Plains (CA); Yu Tang, Waterloo (CA); Paul Franklin Medynski, Halifax (CA); Shiladitya Sircar, Ottawa (CA); and Christopher Donald MacDonald, Kitchener (CA)
Assigned to BlackBerry Limited, Waterloo (CA)
Filed by BlackBerry Limited, Waterloo (CA)
Filed on Apr. 15, 2021, as Appl. No. 17/232,028.
Prior Publication US 2022/0337549 A1, Oct. 20, 2022
Int. Cl. H04L 9/40 (2022.01); H04L 67/55 (2022.01); H04L 12/46 (2006.01)
CPC H04L 63/029 (2013.01) [H04L 12/4633 (2013.01); H04L 63/0236 (2013.01); H04L 67/55 (2022.05)] 19 Claims
OG exemplary drawing
 
1. A computer-implemented method, comprising:
establishing a tunneling connection between a server and an endpoint;
receiving a packet from the server over the tunneling connection, wherein an Internet Protocol (IP) address field of the packet is set to a particular value indicating that the packet is to be inspected by the endpoint;
determining, by the endpoint, whether to inspect the packet based on whether the IP address field of the packet is set to the particular value; and
determining, by the endpoint based on the IP address field of the packet, that the packet comprises a tunneling control message, wherein the tunneling control message indicates a tunneling event.