System enabling the establishment of a telnet connection to a remote device not provided with a modem

• US 20040039823A1
• Filed: 07/25/2003
• Published: 02/26/2004
• Est. Priority Date: 08/26/2002
• Status: Abandoned Application

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Bruno, Aurelien, Grisi, Nicolas, Le Pennec, Jean-Francois, Sommerlatt, Jean-Marie
• Application Number:
  US10/628,010
• Publication Number:
  US 20040039823A1
• Time in Patent Office: Days
• US Class Current: 709/227
• CPC Class Codes: H04L 67/08 specially adapted for terminal emulation, e.g. Telnet
• CPC Class Codes: H04L 67/563 Data redirection of data network streams
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

Data transmission system comprising a help desk workstation (100) provided with the Telnet client function and connected to a Wide Area Network WAN (115) and to the Public Switched Telephone Network PSTN (130), and a Telnet manageable device (120) not provided with a modem and to which the help desk workstation may gain access by using the Telnet protocol. The system comprises a data processing device (110) provided with the proxy function and being connected to the PSTN and to the Telnet manageable device by the intermediary of a Local Area Network LAN (125), the data processing device including proxy means for completing a first Telnet connection with the help desk workstation through the PSTN and for establishing a second Telnet connection with the Telnet manageable device upon receiving a request from the help desk workstation to gain the Telnet access to the Telnet manageable device.

Claims

1. Data transmission system comprising a help desk workstation (100) provided with the Telnet client function and connected to a Wide Area Network WAN (115) and to the Public Switched Telephone Network PSTN (130), and a Telnet manageable device (120) not provided with a modem and to which said help desk workstation may gain access by using the Telnet protocol;

said system being characterized in that it comprises a data processing device (110) provided with the proxy function and being connected to said PSTN and to said Telnet manageable device by the intermediary of a Local Area Network LAN (125), said data processing device including proxy means for completing a first Telnet connection with said help desk workstation through said PSTN and for establishing a second Telnet connection with said Telnet manageable device upon receiving a request from said help desk workstation so that this one can gain the Telnet access to said Telnet manageable device.

2. Data transmission system according to claim 1, wherein said telnet client function corresponds to a legacy Telnet client and wherein said proxy means are adapted to gain access to the default gateway configured in the IP stack of said data processing device upon receiving a request from said help desk workstation.

3. Data transmission system according to claim 1, wherein said Telnet client function corresponds to a legacy Telnet client and wherein said proxy means are adapted to gain access to an IP address in a file including the IP address for the Telnet protocol.

4. Data transmission system according to claim 2 or 3, wherein said proxy means modify the IP address of the request message received from said help desk workstation (100) before sending said request message with the modified IP address to said Telnet manageable device (120).

5. Data transmission system according to any one of claims 1 to 4 wherein said proxy means establish said second connection with said Telnet manageable device (120) through said LAN (125).

6. Data transmission system according to any one of claims 1 to 4, wherein said proxy means establish said connection with said Telnet manageable device (120) through a link from the COM port of said data processing device (110) and the console port of said Telnet manageable device.

7. Data transmission system according to claim 1, wherein said Telnet client function corresponds to a proprietary function adapted to make an encapsulation of the Telnet commands included in the request sent by said help desk workstation (100) to said data processing device (110) including said proxy means, the latter means being adapted to get said Telnet commands from the encapsulated commands received from said desk workstation.

8. Data transmission system according to claim 1, wherein said proxy means are constituted of a program installed in said data processing device.