Frame Relay Device
First Claim
1. A frame relay device, comprising:
- a table for registering an entry containing a pair of a MAC address and an IP address used in a process of relaying a frame in the frame relay device itself;
judging unit for searching through the table for a source MAC address and a source IP address in a received frame to judge whether or not the pair of the source addresses is registered as a relay object at a layer 3; and
layer 3 relay processing unit for performing a layer 3 relay process only for a frame judged as containing the pair of the source addresses registered as the relay object.
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Accused Products
Abstract
A frame relay device includes a table where an entry containing a combination of an MAC address and an IP address is registered to be used in the frame relay processing of a local device. Moreover, the frame relay device includes judgment means for searching the table by the transmission origin MAC address and the transmission origin IP address contained in the frame received and judging whether the combination of the transmission origin addresses is registered as a relay object in the layer 3. Furthermore, the frame relay device includes layer 3 relay processing means for performing layer 3 relay processing only for the frame which has been judged to contain the combination of the transmission origin addresses as a relay object.
64 Citations
16 Claims
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1. A frame relay device, comprising:
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a table for registering an entry containing a pair of a MAC address and an IP address used in a process of relaying a frame in the frame relay device itself; judging unit for searching through the table for a source MAC address and a source IP address in a received frame to judge whether or not the pair of the source addresses is registered as a relay object at a layer 3; and layer 3 relay processing unit for performing a layer 3 relay process only for a frame judged as containing the pair of the source addresses registered as the relay object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A framed relay device, comprising:
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a table capable of registering only one receivable MAC address for each port included in the frame relay device itself; judging unit for judging, for a frame received at each port, whether or not a pair of the same MAC address and the same port number as a pair of a source MAC address and a receiving port number of the frame is registered in the table; and relay unit for performing a layer 2 relay process only for a frame containing the pair of the source MAC address and the receiving port number judged as being registered. - View Dependent Claims (12, 13, 14)
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15. A frame judging device, comprising:
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a table capable of registering only one receivable MAC address for each port included in the frame judging device itself; and judging unit for judging, for a frame received at each port, whether or not a pair of the same MAC address and the same port number as a pair of a source MAC address and a receiving port number of the frame is registered in the table.
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16. A frame judging device, comprising:
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a table for registering an entry containing a pair of a MAC address and an IP address used in a process of relaying a frame in the frame judging device itself; and judging unit for searching through the table for a source MAC address and a source IP address in a received frame to judge whether or not the pair of the source addresses is registered as a relay object at a layer 3.
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Specification