Apparatus and method for supporting establishment of network address of communication apparatus
First Claim
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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 indicating which address establishment scheme the communication apparatus is to use for setting an address of the communication apparatus among a plurality of address establishment schemes that the communication apparatus supports,wherein the information indicates whether the RA message comprises a full address usable by the communication apparatus, and whether the communication apparatus performs a duplicate address detection (DAD) with respect to the full address in order to set the address of the communication apparatus, andwherein the address establishment scheme useable by the communication apparatus is dynamically changed.
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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.
12 Citations
19 Claims
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1. An apparatus for setting an address, the apparatus comprising:
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an access router, wherein the access router transmits a Router Advertisement (RA) message to a communication apparatus, the RA message comprising information indicating which address establishment scheme the communication apparatus is to use for setting an address of the communication apparatus among a plurality of address establishment schemes that the communication apparatus supports, wherein the information indicates whether the RA message comprises a full address usable by the communication apparatus, and whether the communication apparatus performs a duplicate address detection (DAD) with respect to the full address in order to set the address of the communication apparatus, and wherein the address establishment scheme useable by the communication apparatus is dynamically changed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communication apparatus, wherein the communication apparatus:
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supports a plurality of address establishment schemes for setting an address of the communication apparatus; receives a router advertisement (RA) message from an access router, reads a first field of the received RA message, the first field indicating which address establishment scheme the communication apparatus is to use for setting an address of the communication apparatus; and dynamically changes an address establishment scheme of the communication apparatus to the address establishment scheme indicated by the first field, among the plurality of address establishment schemes, wherein the first field indicates whether the RA message comprises a full address usable by the communication apparatus, and whether the communication apparatus performs a duplication address detection (DAD) with respect to the full address in order to set the address of the communication apparatus. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of setting an address of a communication apparatus, the method comprising:
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receiving a router advertisement (RA) message from an access router, the RA message comprising information indicating which address establishment scheme the communication apparatus is to use for setting an address of the communication apparatus among a plurality of address establishment schemes that the communication apparatus supports; reading the received RA message; and dynamically changing an address establishment scheme of the communication apparatus to the address establishment scheme indicated by the information of the RA message, among the plurality of address establishment schemes, wherein the information indicates whether the RA message comprises a full address usable by the communication apparatus, and whether the communication apparatus performs a duplicate address detection (DAD) with respect to the full address in order to set the address of the communication apparatus.
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Specification