TCP proxy insertion and uninstall method, and service gateway device
US8446840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2012 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Nov 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/326
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A TCP proxy insertion and uninstall method is provided, including: during establishment of a TCP connection, forwarding a TCP connection establishing packet between a TCP client and a TCP server through an L3, and recording option information and sequence number information of the TCP connection establishing packet; performing determination on a packet according to a proxy policy; forwarding the received packet if it is determined that no proxy process is required for the packet, and updating the recorded sequence number information according to sequence number information of the received packet; and generating a client pseudo socket and a server pseudo socket according to the option information and sequence number information if it is determined that a proxy process is required for the packet, terminating the received packet by adopting the client pseudo socket and server pseudo socket, processing the terminated packet through an L7 and forwarding the processed packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.