Home gateway apparatus and packet transfer method
AssigneeNEC Platforms, Ltd.
InventorTsutomu Aoshima
Life of this patent
Estimating the term…
Abstract
In order to provide a home gateway apparatus capable of smoothly executing transfer processing while ensuring security, when transferring a packet between a node (102) and an external network (101), the home gateway apparatus (100) rewrites a first address to a second address, the first address being in EUI-64 format for use as a transmission source address by the node at the time of transmission (S206); and upon receiving a packet having the second address as a destination address from the external network, rewrites the destination address of the received packet to the first address (S207).
Claims10
A home gateway apparatus which transfers a packet between a node and an external network, comprising:
- a conversion unit that rewrites a first address to a second address, the first address being in EUI-64 format for use as a transmission source address by the node at the time of transmission;
- a reverse conversion unit that, upon receiving a packet having the second address as a destination address from the external network, rewrites the destination address of the received packet to the first address;
- and
- a storage unit that stores a plurality of second address candidates in advance, wherein the conversion unit selects the second address for rewrite from the plurality of second address candidates.
A home gateway apparatus which transfers a packet between a node and an external network, comprising:
- a conversion unit that rewrites a first address to a second address, the first address being in EUI-64 format for use as a transmission source address by the node at the time of transmission;
- and
- a reverse conversion unit that, upon receiving a packet having the second address as a destination address from the external network, rewrites the destination address of the received packet to the first address,
- wherein the second address is generated from a prefix distributed from the external network and a random value.
A packet transfer method of a home gateway apparatus which transfers a packet between a node and an external network, comprising:
- rewriting a first address to a second address, the first address being in EUI-64 format for use as a transmission source address by the node at the time of transmission;
- upon receiving a packet having the second address as a destination address from the external network, rewriting the destination address of the received packet to the first address;
- storing a plurality of second address candidates in advance;
- and
- selecting the second address for rewrite from the plurality of second address candidates.
A packet transfer method of a home gateway apparatus which transfers a packet between a node and an external network, comprising:
- rewriting a first address to a second address, the first address being in EUI-64 format for use as a transmission source address by the node at the time of transmission;
- upon receiving a packet having the second address as a destination address from the external network, rewriting the destination address of the received packet to the first address;
- and
- further comprising generating the second address from a prefix distributed from the external network and a random value.
Dependencies are inferred from the claim text.