| 一个嵌入式网关的设计及实现 |
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| 引用本文： | 王济勇,林涛,吴进时,王金东,韩光洁,赵海.一个嵌入式网关的设计及实现[J].计算机工程,2003,29(14):9-11. |
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| 作者姓名： | 王济勇 林涛 吴进时 王金东 韩光洁 赵海 |
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| 作者单位： | 东北大学信息科学与工程学院,沈阳,110004 |
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| 基金项目： | 国家自然科学基金资助项目(69873007) |
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| 摘 要： | 大多数低端的嵌入式Internet系统因其处理能力或者程序空间的限制，往往只能提供基于以太网的TCP／IP协议栈及其支持的WWW等Internet服务。为了使这些嵌入式Internet系统能够接受远程拨号接入的控制并根据这些低端系统的实际需求，提出了一个嵌入式网关(WebitGateway)的设计和实现方法，用于提供嵌入式Internet环境下远程拨号接入协议PPP和以太网协议的转换。WebitGateway针对资源严承受限的嵌入式Internet环境，在满足功能和性能要求的前提下，简化了两个协议栈的实现，介绍了简化后的Modem驱动程序和网卡驱动程序及相关协议，还特别介绍了利用看门狗实现Modem安全可靠的故障恢复方法和利用复杂计算转移实现PPP协议中的安全认证协议CHAP方法。
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| 关 键 词： | 嵌入式网关 嵌入式Internet TCP／IP PPP协议 CHAP协议 |
| 文章编号： | 1000-3428(2003)14-0009-03 |
Design and Implementation of an Embedded Gateway |
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| WANG Jiyong,LIN Tao,WU Jinshi,WANG Jindong,HAN Guangjie,ZHAO Hai.Design and Implementation of an Embedded Gateway[J].Computer Engineering,2003,29(14):9-11. |
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| Authors: | WANG Jiyong LIN Tao WU Jinshi WANG Jindong HAN Guangjie ZHAO Hai |
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| Abstract: | Many embedded Internet systems have operated with limited memory and used processors with limited capacity, so they usually provide Internet services, such as WWW, supported by TCP/IP protocol stack based on Ethernet protocol. According to capacity of the low-cost systems, this paper presents a method of design and implementation of an embedded gateway WebitGateway, which can translate protocols between PPP protocol to Ethernet protocol. Using WebitGateways, these Embedded Internet systems can be accessed by remote dial-up users. The drivers and protocols needed by WebitGateway are simplified and showed in details. Specially, the failure recovery of Modem using watch-dog and shifting complex security computing from embedded gateway to remote host for CHAP are discussed in this paper. |
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| Keywords: | Embedded gateway Embedded Internet TCP/IP PPP CHAP |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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