公开(公告)号：US20210314187A1

公开(公告)日：2021-10-07

申请号：US16841637

申请日：2020-04-06

Applicant: Cisco Technology, Inc.

Inventor： Rohit Jindal ,  Sabita Jasty ,  Madhusudana Rao Kata ,  Krishna Mohan Menon ,  Keith Neil Mark Dsouza ,  Virajitha Karnatapu ,  Yegappan Lakshmanan

IPC: H04L12/46 ,  H04L12/713 ,  H04L29/12 ,  H04L12/935 ,  G06F9/455

Abstract: Systems, methods, and computer-readable media for requesting a cellular IP address by initiating a call with a modem, establishing data packet network connectivity with the cellular IP address, assigning the cellular IP address to a virtual L2-bridge interface, wherein the virtual L2-bridge interface includes a MAC address, mapping a MAC address of a virtual machine with the MAC address of the virtual L2-bridge interface, detecting a change in the cellular IP address, and updating the virtual L2-bridge interface with a different cellular IP address while maintaining the data packet network connectivity.

公开(公告)号：US10750368B1

公开(公告)日：2020-08-18

申请号：US16291833

申请日：2019-03-04

Applicant: Cisco Technology, Inc.

Inventor： Shivaji Pundlik Diwane ,  Hungjen Sean Yang ,  Sundara Paal Rani Thirumalaiappan ,  Keith Neil Mark Dsouza ,  Sendilvadivu Ganesan

IPC: H04W12/08 ,  H04W12/00 ,  H04W12/12 ,  H04W12/06 ,  H04W12/04

Abstract: In one illustrative example, a mobile network extender has a network interface configured to connect with a host router and a cellular modem configured to provide a wireless link for communications via a cellular mobile network. In a pairing process, the extender may establish a secure encrypted channel with the router via the network interface. In a locking process, the extender may receive information from the router and verify the information. Upon verification, the extender may be set in a locked state in which the extender is logically locked to the router. The extender may also receive and store a secret session key from the router, and permit the router to acquire the extender for communications. In the locked state, the extender may permit or deny subsequent router acquisition upon router reconnection based on verifying, using the secret session key, authentication data received via the network interface.