Method and apparatus for communicating between a network workstation and an internet

• US 5,867,660 A
• Filed: 05/11/1995
• Issued: 02/02/1999
• Est. Priority Date: 05/11/1995
• Status: Expired due to Term

• Current Assignee: Avaya Incorporated
• Original Assignee: Bay Networks, Inc. (Nortel Networks Corporation)
• Inventors: Murphy, John, Donzis, Henry, Donzis, Lewis, Schmidt, Jonathan, Baron, Peter
• Primary Examiner(s): Bowler, Alyssa H.
• Assistant Examiner(s): Nguyen, Dzung C.
• Application Number:
  US08/439,136
• Time in Patent Office: 1,363 Days
• Field of Search: 395/200.02, 395/200.01, 395/200.21, 395/200.2, 395/200.57, 395/200.58, 395/200.59, 395/200.6, 364/DIG. 1
• US Class Current: 709/227
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/162 involving adaptations of sockets based mechanisms secure socket layer H04L63/168
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

An apparatus and method for connecting a plurality of LAN workstations to the internet via an on-line server/interface that does not require a PC operating system dedicated to the server. The server operates in TCP/IP protocol for communication over the Internet. Only a single connection to the Internet is required in order to permit the entire LAN to operate simultaneously on the Internet. Specifically, only a single phone line is required to simultaneously serve all LAN workstations. The system is equally well suited to connect via a telephone line connection to an Internet providers'"'"'s slip or PPP or via an Ethernet connection to a router or direct connection by any available means. The system does not disturb the native LAN protocol, while communicating via the internet protocol such as, by way of example, TCP/IP. The LAN is provided with a complete internet protocol service, supporting functions not generally available in the dedicated stacks previously provided for individual PCs.

Claims

1. A method for connecting a plurality of PC LAN workstations, interconnected via a socket server, to an internet, said method comprising the steps of:

a. in a workstation,

(1) generating a WINSOCK application request for TCP/IP services;

(2) encapsulating the WINSOCK request in a message;

(3) conveying the encapsulated message via a LAN transport to the socket server;

b. in the socket server,

(1) receiving the encapsulated message from the LAN transport;

(2) extracting the WINSOCK request from the encapsulated message;

(3) submitting the WINSOCK request to a TCP/IP stack;

(4) processing the WINSOCK request by the TCP/IP stack; and

(5) returning the processed WINSOCK request to the workstation via a reverse of steps A(1), A(2), A(3), B(1), and B(2).

2. The method of claim 1, wherein the encapsulating step includes encapsulating the message in a NetBIOS message.

3. The method of claim 2, wherein the conveying step includes submitting the message to a PTNETWORK.DLL.

4. The method of claim 1, wherein a response received from the internet is conveyed to a selected PC LAN workstation by the steps of:

a. encapsulating the response;

b. transporting the encapsulated response to the LAN; and

c. extracting the response from the encapsulated response.

5. The method of claim 4, wherein the step of encapsulating the response includes encapsulating the response in a NetBIOS message.

6. The method of claim 5, wherein the step of extracting the response includes extracting the encapsulated response from the NetBIOS message.

7. A method for communicating between a network and an internet, the method comprising the steps of:

receiving, from a network workstation, an unprocessed request for services encapsulated in a message;

extracting the request from the message;

submitting the request to a TCP/IP stack;

processing the request by the TCP/IP stack; and

forwarding a TCP/IP request corresponding to the request for WINSOCK services to the internet.

8. The method of claim 7, further comprising the steps of:

executing a first operating system to carry out the steps of receiving, extracting, submitting, processing and forwarding; and

wherein the first operating system is different than a second operating system being executed by the network workstation.

9. The method of claim 8, wherein the first operating system operates independently of all other operating systems executing on the network.

10. The method of claim 8, wherein the first operating system is a non-PC operating system.

11. The method of claim 7, further comprising the steps of:

receiving a response to the request from the internet; and

returning the response to the network workstation.

12. The method of claim 11, wherein the step of returning comprises the steps of:

encapsulating the response in a second message; and

sending the second message to the network workstation.

13. The method of claim 7, wherein the step of receiving comprises the step of receiving, from the network workstation, a WINSOCK request encapsulated in a NetBIOS message.

14. The method of claim 7, wherein the step of receiving comprises the step of receiving, from the network workstation, a WINSOCK request encapsulated in a message conforming to an IPX protocol.

15. The method of claim 7, wherein the step of receiving comprises the step of receiving, from a personal computer coupled to a local area network (LAN), a WINSOCK request encapsulated in a message.

16. An apparatus for communicating between a network and an internet, the apparatus comprising:

a TCP/IP stack;

an interface, coupled to the TCP/IP stack, to receive, from a network workstation, an unprocessed request for WINSOCK services encapsulated in a message, to extract the request from the message, and to submit the request to the TCP/IP stack; and

wherein the TCP/IP stack is to process the request and forward a TCP/IP request corresponding to the request for WINSOCK services to the internet.

17. The apparatus of claim 16, further comprising a first operating system which is different than a second operating system being executed by the network workstation.

18. The apparatus of claim 17, wherein the first operating system operates independently of all other operating systems executing on the network.

19. The apparatus of claim 17, wherein the first operating system is a non-PC operating system.

20. The apparatus of claim 16, wherein the TCP/IP stack is further operative to receive a response to the request from the internet, and wherein the interface is further operative to return the response to the network workstation.

21. The apparatus of claim 20, wherein the interface is further operative to encapsulate the response in a second message and send the second message to the network workstation.

22. The apparatus of claim 16, wherein the interface is further operative to receive, from the network workstation, a WINSOCK request encapsulated in a NetBIOS message.

23. The apparatus of claim 16, wherein the interface is further operative to receive, from the network workstation, a WINSOCK request encapsulated in a message conforming to an IPX protocol.

24. The apparatus of claim 16, wherein the interface is further operative to receive, from a personal computer coupled to a local area network (LAN), a WINSOCK request encapsulated in a message.

25. A system comprising:

a workstation including a first interface to receive an unprocessed request for WINSOCK services, to encapsulate the unprocessed request in a message, and to transmit the message on a network;

a server including a TCP/IP stack, a second interface, coupled to the TCP/IP stack, to receive the message from the workstation, to extract the request from the message, and to submit the request to the TCP/IP stack, wherein the TCP/IP stack is to process the request and forward a TCP/IP request corresponding to the request for WINSOCK services to an internet.

26. The system of claim 25, wherein the server executes a first operating system and the workstation executes a second operating system, and wherein the first operating system and the second operating system are different operating systems.

27. The system of claim 26, wherein the first operating system operates independently of all other operating systems executing on the network.

28. The system of claim 26, wherein the first operating system is a non-PC operating system.

29. The system of claim 25, wherein the TCP/IP stack is further operative to receive a response to the request from the internet, and wherein the second interface is further operative to return the response to the workstation.

30. The system of claim 29, wherein the second interface is further operative to encapsulate the response in a second message and send the second message to the workstation.

31. The system of claim 25, wherein the second interface is further operative to receive, from the workstation, a WINSOCK request encapsulated in a NetBIOS message.

32. The system of claim 25, wherein the second interface is further operative to receive, from the workstation, a WINSOCK request encapsulated in a message conforming to an IPX protocol.

33. The system of claim 25, wherein the workstation comprises a personal computer and the network comprises a local area network (LAN).

34. A computer-readable medium having stored thereon a plurality of instructions, designed to be executed by a processor, for implementing a function to:

receive, from a network workstation, an unprocessed request for WINSOCK services encapsulated in a message;

extract the request from the message;

submit the request to a TCP/IP stack;

process the request by the TCP/IP stack; and

forward a TCP/IP request corresponding to the request for WINSOCK services to an internet.

35. The computer-readable medium of claim 34, wherein the plurality of instructions are further for implementing a function to:

receive a response to the request from the internet; and

return the response to the network workstation.

36. The computer-readable medium of claim 35, wherein the plurality of instructions are further for implementing a function to:

encapsulate the response in a second message; and

send the second message to the network workstation.

37. The computer-readable medium of claim 34, wherein the plurality of instructions are further for implementing a function to receive, from the network workstation, a WINSOCK request encapsulated in a NetBIOS message.

38. The computer-readable medium of claim 34, wherein the plurality of instructions are further for implementing a function to receive, from the network workstation, a WINSOCK request encapsulated in a message conforming to an IPX protocol.

39. The computer-readable medium of claim 34, wherein the plurality of instructions are further for implementing a function to receive, from a personal computer coupled to a local area network (LAN), a WINSOCK request encapsulated in a message.