Reinitiation of bind calls for IP applications concurrently executing with alternate address

• US 5,996,016 A
• Filed: 04/15/1997
• Issued: 11/30/1999
• Est. Priority Date: 04/15/1997
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Thalheimer, Dana R., Lee, Hwaan A., Fuqua, Alvah Dean
• Primary Examiner(s): Maung, Zarni
• Assistant Examiner(s): Thomson, William D.
• Application Number:
  US08/834,250
• Time in Patent Office: 959 Days
• Field of Search: 395/200.48, 395/200.33, 395/200.57, 395/200.58, 395/200.6, 395/200.79, 709/203, 709/218, 709/227, 709/228, 709/230, 709/249
• US Class Current: 709/227
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/50 Address allocation
• 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 9/40 Network security protocols

Abstract

Methods, systems and computer program products are provided which provide a plurality of IP applications in a single processing system by intercepting a bind call of an IP application. An alternate address is obtained for utilization with the IP application and the bind call reinitiated utilizing the alternate address. Furthermore, it may be determined if an alternate address is to be utilized with the IP application the alternate address obtained if it is determined that an alternate address is to be used. Then, the bind call is reinitiated utilizing the alternate address if it is determined that an alternate address is to be utilized with the IP application. The bind call may also be reinitiated utilizing an address of the intercepted bind call if it is determined that an alternate is not to be utilized.

Claims

1. A method of providing a plurality of IP applications in a single processing system, the method comprising:

intercepting bind calls of a plurality of IP applications executing in a single processing system;

obtaining alternate addresses for utilization with each of the plurality of IP applications; and

reinitiating the bind calls utilizing the alternate addresses so that the plurality of IP applications concurrently execute in the single processing system utilizing different alternate addresses for each of the plurality of IP applications; and

wherein the alternate addresses are network addresses other than a default address associated with a network interface of the single processing system.

2. The method according to claim 1, further comprising the step of:

determining responsive to intercepting a bind call of one of the plurality of IP applications, if an alternate address is to be utilized with the one of the plurality of IP applications;

wherein said obtaining step comprises the step of obtaining an alternate address if said determining step determines that an alternate address is to be used; and

wherein said reinitiating step comprises the step of reinitiating the bind call of the one of the plurality of IP applications utilizing the obtained alternate address if said determining step determines that an alternate address is to be utilized with the one of the plurality of IP applications.

3. The method according to claim 2 wherein said reinitiating step further comprises the step of reinitiating the bind call of the one of the plurality of IP applications utilizing an address of the intercepted bind call of the one of the plurality of IP applications if said determining step does not determine that an alternate is to be utilized.

4. The method according to claim 1 wherein said intercepting step comprise the step of:

exiting an IP stack of the processing system during a bind function; and

wherein said obtaining step comprises the step of obtaining a TCP/IP aliased address to be bound to the application; and

wherein said reinitiating step comprises the step of returning to the IP stack to bind the obtained TCP/IP aliased address to the application.

5. The method according to claim 1, wherein said obtaining step comprises the step of prompting a user to input the TCP/IP aliased address.

6. The method according to claim 1, wherein at least one of the IP applications comprises an SNMP network management application.

7. A processing system having a plurality of IP applications, the system comprising:

a processing system having a network interface;

means for intercepting bind calls of a plurality of IP applications executing in a single processing system;

means for obtaining alternate addresses for utilization with each of the plurality of IP applications; and

means for reinitiating the bind calls utilizing the alternate addresses so that the plurality of IP applications concurrently execute in the single processing system utilizing different alternate addresses for each of the plurality of IP applications; and

wherein the alternate addresses are network addresses other than a default address associated with the network interface of the single processing system.

8. The processing system according to claim 7, further comprising:

means, responsive to the means for intercepting, for determining if an alternate address is to be utilized with one of the plurality of IP applications corresponding to an intercepted bind call;

wherein said means for obtaining comprises means for obtaining an alternate address corresponding to the one of the plurality of IP applications if said means for determining determines that an alternate address is to be used; and

wherein said means for reinitiating comprises means for reinitiating the bind call utilizing the alternate address corresponding to the one of the plurality of IP applications if said means for determining determines that an alternate address is to be utilized with the one of the plurality of IP applications.

9. The processing system according to claim 8 wherein said means for reinitiating further comprises means for reinitiating the bind call utilizing an address of the intercepted bind call of the one of the plurality of IP applications if said means for determining does not determine that an alternate is to be utilized.

10. The system according to claim 7 wherein said means for intercepting comprises means for exiting an IP stack of the processing system during a bind function;

and

wherein said means for obtaining comprises means for obtaining a TCP/IP aliased address to be bound to the application; and

wherein said means for reinitiating comprises means for returning to the IP stack to bind the obtained TCP/IP aliased address to the application.

11. The system according to claim 7, wherein said means for obtaining comprises means for prompting a user to input an aliased address.

12. A computer program product for providing a plurality of IP applications in a single processing system, the computer program product comprising:

a computer-readable storage medium having computer-readable program code means embodied in said medium, said computer-readable program code means comprising;

computer-readable program code means for intercepting bind calls of a plurality of IP applications executing in a single processing system;

computer-readable code means for obtaining alternate addresses for utilization with each of the plurality of IP applications; and

computer-readable code means for reinitiating the bind calls utilizing the alternate addresses that the plurality of IP applications concurrently execute in the single processing system utilizing different alternate addresses for each of the plurality of IP applications; and

wherein the alternate addresses are network addresses other than a default address associated with a network interface of the single processing system.

13. The computer program product according to claim 12, further comprising:

computer-readable code means, responsive to the computer-readable code means for intercepting, for determining if an alternate address is to be utilized with one of the plurality of IP applications corresponding to an intercepted bind call;

wherein said computer-readable code means for obtaining comprises computer-readable code means for obtaining an alternate address corresponding to the one of the plurality of IP applications if said computer-readable code means for determining determines that an alternate address is to be used; and

wherein said computer-readable code means for reinitiating comprises computer-readable code means for reinitiating the bind call utilizing the alternate address corresponding to the one of the plurality of IP applications if said computer-readable code means for determining determines that an alternate address is to be utilized with the one of the plurality of IP applications.

14. The processing system according to claim 13 wherein said computer-readable program code means for reinitiating further comprises computer-readable program code means for reinitiating the bind call utilizing an address of the intercepted bind call of the one of the plurality of IP applications if said computer-readable program code means for determining does not determine that an alternate is to be utilized.

15. The computer program product according to claim 12 wherein said computer-readable program code means for intercepting comprises:

computer-readable program code means for exiting an IP stack of the processing system during a bind function; and

wherein said computer-readable program code means for obtaining comprises computer-readable program code means for obtaining a TCP/IP aliased address to be bound to the application; and

wherein said computer-readable program code means for reinitiating comprises computer-readable program code means for returning to the IP stack to bind the obtained TCP/IP aliased address to the application.

16. The computer program product according to claim 12, wherein said computer-readable program code means for obtaining comprises computer-readable program code means for prompting a user to input an aliased address.

17. The computer program product according to claim 12, wherein at least one of the plurality of IP applications comprises an SNMP network management application.