최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0350541 (1994-12-07) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 438 인용 특허 : 0 |
A security system for connecting a first computer network to a second computer network is provided. The security device has a pair of computer motherboards, each of which has a network interface adapter for receiving and transferring communications from a computer network to a transfer adapter to be
A security system for connecting a first computer network to a second computer network is provided. The security device has a pair of computer motherboards, each of which has a network interface adapter for receiving and transferring communications from a computer network to a transfer adapter to be transmitted to the other computer network through a transfer adapter and network interface adapter provided on the other computer motherboard. Each motherboard provides protocol translation from a first protocol to a second protocol and removes source and destination address information from communications transferred to the other computer motherboard. Application program interface shim software or dynamic link library software provides control of communications between the two motherboards for passing code necessary to request and receive services from the other computer network.
A security system for preventing unauthorized communications between a first network of computers interconnected for Internet Protocol (IP) communications and a second network of computers interconnected for IP communications, while permitting application level communication services between compute
A security system for preventing unauthorized communications between a first network of computers interconnected for Internet Protocol (IP) communications and a second network of computers interconnected for IP communications, while permitting application level communication services between computers connected to said first and said second networks, comprising: a first network motherboard and a second network motherboard, said first and second network motherboards each having a network interface adapter for communication with said first and said second networks of computers, and for establishing a distinct subnetwork mask, respectively; each of said network motherboards further having a transfer adapter for communication with said transfer adapter of said other network motherboard, said transfer adapters being identical and matched, each of said network motherboards having network operating software to assign a source address for IP protcol communication in accordance with a susbnetwork mask established for one of said network motherboards which is different from the subnetwork mask established for the other of said network motherboards, said network operating software further including protocol conversion software to translate communications received by each said network interface adapter from said first or said second networks of computers, repectively, in IP protocol format to non-IP protocol format for transmission between the transfer adapters of said first and said second network motherboards, whereby upper level layer protocol information and originating source and destination address information are removed from said communication and routing services communications from said first and second computer networks are prevented from being passed between said network interface adapter and said transfer adapter of each said network motherboard, and thence preventing unauthorized communications between computers connected to said first and said second computer networks; and at least one of said network motherboards having application programming interface (API) shim software for providing application level communication services to the computers connected to said at least one network motherboard notwithstanding the removal of said original source and destination address information, and the preventing of said routing services communications.
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