1
Shujin Zhang, Shuxian Lou, Roman Peter Kochan, Aravind Sitaraman: Multiple-level internet protocol accounting. Cisco Technology, D Alessandro & Ritchie, September 12, 2000: US06119160 (187 worldwide citation)

A method and apparatus for providing computer network access points the capability for multiple-level accounting. A gateway device located at the access point is capable of generating Internet protocol accounting start and stop requests based on various events that need to be accounted for when a us ...


2
Aravind Sitaraman, Maria Alice Dos Santos, Shuxian Lou, Shujin Zhang, Sampath Kumar Sthothra Bhasham: Integrated IP address management. Cisco Technology, David B Ritchie, Thelen Reid & Priest, July 30, 2002: US06427170 (187 worldwide citation)

A method and apparatus for managing dynamic IP address allocation in a data communications network having a point of presence, a network access device associated with said point of presence, and user connections to users formed through the network access device. The system includes a protocol gatewa ...


3
Shujin Zhang, Shuxian Lou: Single step network logon based on point to point protocol. Cisco Technology, Thelen Reid & Priest, June 26, 2001: US06253327 (162 worldwide citation)

A method and apparatus for providing single-step logon access for a subscriber to a differentiated computer network having more than one separate access area. In a method for single-step logon a network gateway interface grants a subscriber access to both one or more public network domains, such as ...


4
Jane Jiaying Jin, Jie Chu, Maria Alice Dos Santos, Shuxian Lou, Xi Xu, Shujin Zhang: Method for providing single step log-on access to a differentiated computer network. Cisco Technology, David B Ritchie, Thelen Reid & Priest, October 30, 2001: US06311275 (111 worldwide citation)

A method for providing single step log-on access for a subscriber to a computer network. The computer network is differentiated into public and private areas. Secure access to the private areas is provided by a Service Selection Gateway (SSG) Server, introduced between a conventional Network Access ...


5
Aravind Sitaraman, Shuxian Lou, Shujin Zhang: Forced sequential access to specified domains in a computer network. Cisco Technology, D&apos Alessandro & Ritchie, April 3, 2001: US06212561 (111 worldwide citation)

The present invention is a method and apparatus for providing the owners of domain sites on a computer network or the owners of private remotely accessible intra networks the capability to force authorized users to disconnect from any open connections to other public or private domains or networks b ...


6
Aravind Sitaraman, Shuxian Lou, Shujin Zhang, Sampath Kumar Sthothra Bhasham: Load balancing between service component instances. Cisco Technology, Thelen Reid & Priest, August 27, 2002: US06442165 (110 worldwide citation)

Service requests, which are used to properly process a network access request received from a client, are processed by routing the service requests between at least two service component instances according to a load balancing algorithm. Load balancing includes: calculating a first ticket amount and ...


7
Shujin Zhang, Xi Xu, Maria Alice Dos Santos, Jane Jiaying Jin, Jie Chu, Shuxian Lou: Per user and network routing tables. Cisco Technology, Marc S Hanish, Thelen Reid & Priest, May 28, 2002: US06396833 (74 worldwide citation)

A gateway is provided which routes a packet sent from a user to the connected network which would maximize the chances that the packet arrives at its destination in the quickest way possible. This is accomplished by extracting a source address from the packet; searching through one or more per-user ...


8
Shujin Zhang, Aravind Sitaraman, Shuxian Lou: Method and apparatus for domain name service request resolution. Cisco Technology, John P Schaub, Thelen Reid & Priest, November 27, 2001: US06324585 (71 worldwide citation)

A gateway is provided which resolves a DNS request in a manner that minimizes the time and bandwidth required to conduct a DNS search as well as increases the chances that a DNS request will be answered for systems in which the gateway is connected to more than one network simultaneously. The gatewa ...


9
Shujin Zhang, Jane Jiaying Jin, Jie Chu, Maria Alice Dos Santos, Shuxian Lou: Multiple network connections from a single PPP link with partial network address translation. Cisco Technology, Marc S Hanish, Thelen Reid & Priest, April 30, 2002: US06381646 (66 worldwide citation)

Multiple simultaneous network connections from a single PPP connection may be accomplished. A primary PPP connection is established between a user and a first network. A first real network address for the user is then received, the first real network address assigned by the first network. Then, the ...


10
Aravind Sitaraman, Shuxian Lou, Shujin Zhang, Sampath Kumar Sthothra Bhasham: Responding to network access requests using a transparent media access and uniform delivery of service. Cisco Technology, David B Ritchie, Thelen Reid & Priest, May 7, 2002: US06385653 (65 worldwide citation)

Network access requests, which may based on different access methods, are processed by using a protocol gateway that insulates the processing of the access requests from the specialized protocols required to obtain the necessary services required for the different access methods supported. In a firs ...