Apparatus and method for supporting establishment of network address of communication apparatus

• US 20080031278A1
• Filed: 06/05/2007
• Published: 02/07/2008
• Est. Priority Date: 08/01/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: Jang, Hee-Jin, Choi, Jin-Hyeock
• Granted Patent: US 7,852,878 B2
• Time in Patent Office: Days
• US Class Current: 370/475
• CPC Class Codes: H04J 3/24 in which the allocation is indicated by an address the different channels being transmitted sequentiallyH04J3/17 takes precedence; in computers G06F12/00, G06F13/00 code multiplex systems H04J13/00; selecting techniques H04Q; relay systems H04B7/14
• CPC Class Codes: H04L 2101/659 Internet protocol version 6 [IPv6] addresses
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 61/5092 by self-assignment, e.g. picking addresses at random and testing if they are already in use

Abstract

An apparatus and method of setting an address of a communication apparatus is provided where when an access router transmits a Router Advertisement (RA) message to the communication apparatus, the communication apparatus sets an address establishment scheme of the communication apparatus according to a first field of the RA message. The RA message includes information about the address establishment scheme, which the communication apparatus is able to use, in the first field.

Claims

1. An apparatus for setting an address, the apparatus comprising:

an access router, wherein the access router transmits a Router Advertisement (RA) message to a communication apparatus, the RA message comprising information about an address establishment scheme for the communication apparatus.

2. The apparatus of claim 1, wherein the communication apparatus supports a plurality of address establishment schemes.

3. The apparatus of claim 1, wherein the address establishment scheme useable by the communication apparatus is dynamically changed.

4. The apparatus of claim 1, wherein, when the first field comprises a first value, the first value indicates that the communication apparatus uses a network address acquired by the communication apparatus as an address of the communication apparatus without performing a duplicate address detection (DAD).

5. The apparatus of claim 1, wherein, when the first field comprises a second value, the second value indicates that the RA message comprises a network address usable by the communication apparatus is able to use, and the communication apparatus uses the network address as an address of the communication apparatus without performing a duplicate address detection (DAD).

6. The apparatus of claim 5, wherein a prefix information option field of the RA message comprises the network address usable by the communication apparatus.

7. The apparatus of claim 1, wherein, when the first field comprises a third value, the third value indicates that the communication apparatus generates an auto-configured network address by using an EUI64 interface identifier.

8. The apparatus of claim 1, wherein, when the first field comprises a fourth value, the fourth value indicates that the communication apparatus uses a network address as an address of the communication apparatus when a Neighbor Advertisement (NA) message responding to a Neighbor Solicitation (NS) message comprising the network address of the communication apparatus comprises information indicating a uniqueness of the network address.

9. The apparatus of claim 8, wherein the network address corresponds to an Internet Protocol version 6 (IPv6) address.

25. The apparatus of claim 1, wherein a first field of the RA message comprises the information about the address establishment scheme.

26. The apparatus of claim 2, wherein the information about the address establishment scheme corresponds to information about the address establishment scheme among the plurality of address establishment schemes usable by the communication apparatus for the address establishment of the communication apparatus.

27. The apparatus of claim 7, wherein the communication apparatus uses the auto-configured network address as an address of the communication apparatus without performing a duplicate address detection (DAD).

10. A communication apparatus, wherein the communication apparatus receives a router advertisement (RA) message from an access router, reads a first field of the received RA message, and determines an address establishment scheme of the communication apparatus according to the first field.

11. The communication apparatus of claim 10, wherein the communication apparatus supports a plurality of address establishment schemes.

12. The communication apparatus of claim 10, wherein, when the first field comprises a first value, the communication apparatus sets a network address acquired by the communication apparatus to an address of the communication apparatus without performing a duplicate address detection (DAD).

13. The communication apparatus of claim 12, wherein the communication apparatus automatically sets DupAddrDetectTransmits, corresponding to a node variable of an interface which receives the RA message, to 0, so that the DAD is not performed.

14. The communication apparatus of claim 10, wherein, when the first field comprises a second value, the RA message comprises the network address usable by the communication apparatus, and the communication apparatus sets the network address as an address of the communication apparatus without performing a duplicate address detection (DAD).

15. The communication apparatus of claim 14, wherein a prefix information option field of the RA message comprises the network address usable by the communication apparatus.

16. The communication apparatus of claim 10, wherein, when the first field comprises a third value, the communication apparatus generates an auto-configured network address by using an EUI64 interface identifier, and the communication apparatus sets the auto-configured network address to an address of the communication apparatus without performing a DAD.

17. The communication apparatus of claim 10, wherein, when the first field comprises a fourth value, the communication apparatus transmits a Neighbor Solicitation (NS) message comprising a network address, receives a Neighbor Advertisement (NA) message responding to the NS message, and sets the network address as an address of the communication apparatus when the NA message comprises information indicating a uniqueness of the network address.

30. The communication apparatus of claim 11, where the apparatus determines the address establishment scheme of the communication apparatus by using any one of the plurality of address establishment schemes according to the first field.

18. A communication apparatus, wherein the communication apparatus sets a network address acquired by the communication apparatus to an address of the communication apparatus without performing a duplicate address detection (DAD), when a first field of a Router Advertisement (RA) message received from an access router comprises a first value.

19. The communication apparatus of claim 18, wherein the communication apparatus automatically sets DupAddrDetectTransmits, corresponding to a node variable of an interface which receives the RA message, to 0, so that the DAD is not performed.

20. The communication apparatus of claim 18, wherein the network address acquired by the communication apparatus is assigned according to a Request for Comments (RFC) 2463 or RFC 3315.

21. A communication apparatus, wherein the communication apparatus receives a Router Advertisement (RA) message comprising a network address usable by the communication apparatus from an access router, and sets an address of the communication apparatus to the network address, without performing a duplicate address detection (DAD).

22. The communication apparatus of claim 21, wherein a prefix information option field of the RA message comprises the network address usable by the communication apparatus.

23. A communication apparatus, wherein the communication apparatus generates an auto-configured network address by using an EUI64 interface identifier, and the communication apparatus sets an address of the communication apparatus to the auto-configured network address, without performing a duplicate address detection (DAD).

24. A communication apparatus, wherein the communication apparatus transmits a NS message comprising an assigned network address to the communication apparatus, and sets an address of the communication apparatus to the assigned network address, when a Neighbor Advertisement (NA) message that responds to the Neighbor Solicitation (NS) message comprises information indicating a uniqueness of the network address.

28. A method of setting an address of a communication apparatus, the method comprising:

receiving a router advertisement (RA) message from an access router, the RA message comprising information about an address establishment scheme;

reading the received RA message; and

determining an address establishment scheme for a communication apparatus according to the RA message.

29. A computer implemented method of setting an address of a communication apparatus comprising:

receiving a Route Advertisement (RA) message from an access router,

reading the received RA message, and

determining an address establishment scheme of the communication apparatus.