Control apparatus, communication control method executed by the control apparatus, communication control program controlling the control apparatus, and data processing system
First Claim
1. A control apparatus provided between a first network and a second network different from the first network, in which a data processing apparatus is connected to the first network, the control apparatus comprising:
- a changing unit configured to change setting information that is set for network communications;
a notifying unit configured to notify the data processing apparatus of the setting information changed by the changing unit; and
a rewriting unit configured to, when the control apparatus receives data to be transmitted to a destination apparatus connected to the second network from the data processing apparatus under a condition that the data processing apparatus is not yet operating based on the setting information notified by the notifying unit, rewrite information included in the received data according to the setting information changed by the changing unit.
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Accused Products
Abstract
A control apparatus is provided between a first network and a second network different from the first network, in which a data processing apparatus is connected to the first network. The control apparatus notifies the data processing apparatus of a change of setting information that is set for network communications. Then, the control apparatus rewrites information involved in received data according to the changed setting information, when the data processing apparatus transmits data to be transmitted to a destination apparatus connected to the second network under a condition that the data processing apparatus is not yet operating based on the changed setting information.
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Citations
11 Claims
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1. A control apparatus provided between a first network and a second network different from the first network, in which a data processing apparatus is connected to the first network, the control apparatus comprising:
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a changing unit configured to change setting information that is set for network communications;
a notifying unit configured to notify the data processing apparatus of the setting information changed by the changing unit; and
a rewriting unit configured to, when the control apparatus receives data to be transmitted to a destination apparatus connected to the second network from the data processing apparatus under a condition that the data processing apparatus is not yet operating based on the setting information notified by the notifying unit, rewrite information included in the received data according to the setting information changed by the changing unit. - View Dependent Claims (4, 5, 6)
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2. A control apparatus provided between a first network and a second network different from the first network, in which a data processing apparatus is connected to the first network, the control apparatus comprising:
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a changing unit configured to change setting information that is set for network communications;
a notifying unit configured to notify the data processing apparatus of the setting information changed by the changing unit;
a detecting unit configured to detect a reboot operation of the data processing apparatus performed after notification by the notifying unit; and
a rewriting unit configured to, when the control apparatus receives data to be transmitted to a destination apparatus connected to the second network from the data processing apparatus under a condition that the detecting unit detects no reboot operation of the data processing apparatus, rewrite information included in the received data according to the setting information changed by the changing unit. - View Dependent Claims (3)
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7. A method for controlling communications performed by a control apparatus provided between a first network and a second network different from the first network, in which a data processing apparatus is connected to the first network, the method comprising:
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changing setting information that is set for network communications;
notifying the data processing apparatus of the changed setting information; and
when the control apparatus receives data to be transmitted to a destination apparatus connected to the second network from the data processing apparatus under a condition that the data processing apparatus is not yet operating based on the changed setting information, rewriting information included in the received data according to the changed setting information.
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8. A method for controlling communications performed by a control apparatus provided between a first network and a second network different from the first network, in which a data processing apparatus is connected to the first network, the method comprising:
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changing setting information that is set for network communications;
transmitting the changed setting information to the data processing apparatus via the first network;
detecting a reboot operation of the data processing apparatus performed after the changed setting information is transmitted; and
when the control apparatus receives data to be transmitted to a destination apparatus connected to the second network from the data processing apparatus under a condition that no reboot operation of the data processing apparatus is detected, rewriting information included in the received data according to the changed setting information.
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9. A communication control program for controlling a control apparatus provided between a first network and a second network different from the first network, in which a data processing apparatus is connected to the first network, the communication control program comprising:
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program code for a changing Step of changing setting information that is set for network communications;
program code for a notifying Step of notifying the data processing apparatus of the setting information changed in the changing Step; and
program code for a rewriting Step of, when the control apparatus receives data to be transmitted to a destination apparatus connected to the second network from the data processing apparatus under a condition that the data processing apparatus is not yet operating based on the setting information notified in the notifying Step, rewriting information included in the received data according to the setting information changed in the changing Step.
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10. A communication control program for controlling a control apparatus provided between a first network and a second network different from the first network, in which a data processing apparatus is connected to the first network, the communication control program comprising:
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program code for changing setting information that is set for network communications;
program code for transmitting the changed setting information to the data processing apparatus via the first network;
program code for detecting a reboot operation of the data processing apparatus performed after the changed setting information is transmitted; and
program code for, when the control apparatus receives data to be transmitted to a destination apparatus connected to the second network from the data processing apparatus under a condition that no reboot operation of the data processing apparatus is detected, rewriting information included in the received data according to the changed setting information.
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11. A data processing system and network comprising:
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a data processing apparatus connected to a first network; and
a control apparatus provided between the first network and a second network different from the first network, wherein the control apparatus comprises, a changing unit configured to change setting information that is set for network communications;
a notifying unit configured to notify the data processing apparatus of the setting information changed by the changing unit;
a detecting unit configured to detect a reboot operation of the data processing apparatus performed after notification by the notifying unit; and
a rewriting unit configured to, when the control apparatus receives data to be transmitted to a destination apparatus connected to the second network from the data processing apparatus under a condition that the detecting unit detects no reboot operation of the data processing apparatus, rewrite information included in the received data according to the setting information changed by the changing unit.
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Specification