Patents by Inventor Rajesh Mohan

Rajesh Mohan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9961197
    Abstract: The present invention provides a system, method and apparatus for authenticating calls that is a robust Anti-vishing solution. The present invention can identify Caller ID spoofing, verify dialed number to detect man-in-the middle and verify called party against dialed digits to detect impersonation. This solution can handle calls coming from any phone any where with little impact on user experience. Two separate solutions are tailored for smart phones (communication devices capable of running application software) and traditional phones to reduce the impact to user experience while providing robust verification.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: May 1, 2018
    Assignee: Avaya Inc.
    Inventors: Srikrishna Kurapati, Rajesh Mohan, Karthikeyan Sadhasivam, Satyam Tyagi
  • Patent number: 9614761
    Abstract: A source network address and port translation (NAPT) mechanism is described that reduces or eliminates the need to log any NAT translations. As described herein, a mapping between a subscriber's private address to a public address and port range is determined algorithmically. Given a particular mapping rule, as specified by the service provider, a subscriber is repeatedly and deterministically mapped to the same public network address and a specific port range for that network address. Once the public address and port range for a subscriber are computed, the particular ports for each session for that subscriber are allocated dynamically within the computed NAT port range on per session basis.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: April 4, 2017
    Assignee: Juniper Networks, Inc.
    Inventors: Sarat Kamisetty, Rajesh Mohan, Suresh Kumar Vinapamula Venkata, Reinaldo Penno
  • Patent number: 9479596
    Abstract: A network device may receive a request from a local device to establish a connection with a another device. The request may include an internal network identifier of the local device. The network device may evaluate a plurality of external network identifiers, associated with the network device based on selected criteria. The network device may also, or alternatively, evaluate the external network identifiers by identifying an external network identifier that is already mapped to, or paired with, the internal network identifier. The network device may select an external network identifier, of the plurality of external network identifiers, based on the evaluation and establish the connection requested by the local device using the internal network identifier and the external network identifier.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: October 25, 2016
    Assignee: Juniper Networks, Inc.
    Inventors: Suresh Kumar Vinapamula Venkata, Rajesh Mohan, Sarat Kamisetty, Reinaldo Penno, Sanjay V. Agrawal
  • Patent number: 9479597
    Abstract: A node is configured to receive, from a second node, a request to establish a session; perform, in response to the request, a network address translation (NAT) operation to establish the session, the NAT operation causing a first port block to be allocated to the session, the first port block including a first set of ports via which traffic, associated with the session, is transported; determine that the set of ports are no longer available for the session; determine whether a quantity of times that the first port block has been allocated to the session is greater than a threshold; and retain the first port block, for the session, when the quantity of times that the first port block has been allocated to the session is not greater than the threshold.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: October 25, 2016
    Assignee: Juniper Networks, Inc.
    Inventors: Suresh Kumar Vinapamula Venkata, Rajesh Mohan, Sarat Kamisetty, Reinaldo Penno, Sanjay V. Agrawal
  • Publication number: 20150350336
    Abstract: A node is configured to receive, from a second node, a request to establish a session; perform, in response to the request, a network address translation (NAT) operation to establish the session, the NAT operation causing a first port block to be allocated to the session, the first port block including a first set of ports via which traffic, associated with the session, is transported; determine that the set of ports are no longer available for the session; determine whether a quantity of times that the first port block has been allocated to the session is greater than a threshold; and retain the first port block, for the session, when the quantity of times that the first port block has been allocated to the session is not greater than the threshold.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 3, 2015
    Inventors: Suresh Kumar VINAPAMULA VENKATA, Rajesh MOHAN, Sarat KAMISETTY, Reinaldo PENNO, Sanjay V. AGRAWAL
  • Patent number: 9197746
    Abstract: The present invention provides a system, method and apparatus for authenticating calls that is a robust Anti-vishing solution. The present invention can identify Caller ID spoofing, verify dialed number to detect man-in-the middle and verify called party against dialed digits to detect impersonation. This solution can handle calls coming from any phone any where with little impact on user experience. Two separate solutions are tailored for smart phones (communication devices capable of running application software) and traditional phones to reduce the impact to user experience while providing robust verification.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: November 24, 2015
    Assignee: Avaya Inc.
    Inventors: Srikrishna Kurapati, Rajesh Mohan, Karthikeyan Sadhasivam, Satyam Tyagi
  • Patent number: 9178846
    Abstract: A source network address and port translation (NAPT) mechanism is described that reduces or eliminates the need to log any NAT translations. As described herein, a mapping between a subscriber's private address to a public address and port range is determined algorithmically. Given a particular mapping rule, as specified by the service provider, a subscriber is repeatedly and deterministically mapped to the same public network address and a specific port range for that network address. Once the public address and port range for a subscriber are computed, the particular ports for each session for that subscriber are allocated dynamically within the computed NAT port range on per session basis.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: November 3, 2015
    Assignee: Juniper Networks, Inc.
    Inventors: Sarat Kamisetty, Rajesh Mohan, Suresh Kumar Vinapamula Venkata, Reinaldo Penno
  • Patent number: 9112919
    Abstract: A node is configured to receive, from a second node, a request to establish a session; perform, in response to the request, a network address translation (NAT) operation to establish the session, the NAT operation causing a first port block to be allocated to the session, the first port block including a first set of ports via which traffic, associated with the session, is transported; determine that the set of ports are no longer available for the session; determine whether a quantity of times that the first port block has been allocated to the session is greater than a threshold; and retain the first port block, for the session, when the quantity of times that the first port block has been allocated to the session is not greater than the threshold.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: August 18, 2015
    Assignee: Juniper Networks, Inc.
    Inventors: Suresh Kumar Vinapamula Venkata, Rajesh Mohan, Sarat Kamisetty, Reinaldo Penno, Sanjay V. Agrawal
  • Publication number: 20150124945
    Abstract: The present invention provides a system, method and apparatus for authenticating calls that is a robust Anti-vishing solution. The present invention can identify Caller ID spoofing, verify dialed number to detect man-in-the middle and verify called party against dialed digits to detect impersonation. This solution can handle calls coming from any phone any where with little impact on user experience. Two separate solutions are tailored for smart phones (communication devices capable of running application software) and traditional phones to reduce the impact to user experience while providing robust verification.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventors: Srikrishna Kurapati, Rajesh Mohan, Karthikeyan Sadhasivam, Satyam Tyagi
  • Publication number: 20140351448
    Abstract: A network device may receive a request from a local device to establish a connection with a another device. The request may include an internal network identifier of the local device. The network device may evaluate a plurality of external network identifiers, associated with the network device based on selected criteria. The network device may also, or alternatively, evaluate the external network identifiers by identifying an external network identifier that is already mapped to, or paired with, the internal network identifier. The network device may select an external network identifier, of the plurality of external network identifiers, based on the evaluation and establish the connection requested by the local device using the internal network identifier and the external network identifier.
    Type: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Inventors: Suresh Kumar VINAPAMULA VENKATA, Rajesh Mohan, Sarat Kamisetty, Reinaldo Penno, Sanjay V. Agrawal
  • Patent number: 8806033
    Abstract: A network device may receive a request from a local device to establish a connection with a another device. The request may include an internal network identifier of the local device. The network device may evaluate a plurality of external network identifiers, associated with the network device based on selected criteria. The network device may also, or alternatively, evaluate the external network identifiers by identifying an external network identifier that is already mapped to, or paired with, the internal network identifier. The network device may select an external network identifier, of the plurality of external network identifiers, based on the evaluation and establish the connection requested by the local device using the internal network identifier and the external network identifier.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: August 12, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Suresh Kumar Vinapamula Venkata, Rajesh Mohan, Sarat Kamisetty, Reinaldo Penno, Sanjay V. Agrawal
  • Patent number: 8799514
    Abstract: A network device may receive a packet from a user device; allocate a first port range to the user device; measure a period of time after allocating the first port range; and allocate a second port range to the user device when the measured period of time is equal to a particular period of time. The first port range may be associated with a first Internet Protocol (IP) address.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: August 5, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Olivier Vautrin, Reinaldo Penno, Rajesh Mohan, Sarat Kamisetty, Alain Durand
  • Patent number: 8701179
    Abstract: Techniques are described for providing secure network address translation (NAT) in a NAT device that provides endpoint-independent mapping (EIM) and endpoint-independent filtering (EIF) operations.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: April 15, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Reinaldo Penno, Sarat Kamisetty, Alexander Arseniev, Rajesh Mohan, Mayuresh Bakshi
  • Publication number: 20090217039
    Abstract: The present invention provides a system, method and apparatus for authenticating calls that is a robust Anti-vishing solution. The present invention can identify Caller ID spoofing, verify dialed number to detect man-in-the middle and verify called party against dialed digits to detect impersonation. This solution can handle calls coming from any phone any where with little impact on user experience. Two separate solutions are tailored for smart phones (communication devices capable of running application software) and traditional phones to reduce the impact to user experience while providing robust verification.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 27, 2009
    Applicant: SIPERA SYSTEMS, INC.
    Inventors: Srikrishna Kurapati, Rajesh Mohan, Karthikeyan Sadhasivam, Satyam Tyagi