| 嵌入式防火墙中TCP/IP协议栈的实现 |
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| 引用本文： | 蒋俊锋.嵌入式防火墙中TCP/IP协议栈的实现[J].河海大学常州分校学报,2006,20(4):33-36. |
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| 作者姓名： | 蒋俊锋 |
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| 作者单位： | 河海大学,计算机及信息与工程学院,江苏,常州,213022 |
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| 摘 要： | 针对嵌入式防火墙,设计适合在嵌入式防火墙网卡中运行的TCP/IP协议栈.通过修改IP协议字段解决TCP/IP协议栈区分策略数据包和普通数据包的问题,对传统的BSD协议栈进行裁剪,得到了基于S3C44B0X的大小为132kB的TCP/IP协议栈.测试结果表明:改进的TCP/IP协议栈能保证嵌入式防火墙的底层通信。
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| 关 键 词： | 嵌入式系统 分布式防火墙 TCP/IP |
| 文章编号： | 1009-1130(2006)04-0033-04 |
| 修稿时间： | 2006年6月15日 |
Implementation of TCP/IP Protocol Stack in Embedded Firewall |
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| JIANG Jun-feng.Implementation of TCP/IP Protocol Stack in Embedded Firewall[J].Journal of Hohai University Changzhou,2006,20(4):33-36. |
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| Authors: | JIANG Jun-feng |
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| Abstract: | The TCP/IP application in embedded system is discussed.Based on EFW(Embedded Firewall),a communications stack is designed which fits in the EFW NIC.The IP protocol segment is modified to differentiate the common packets and the policy packets.By cutting the traditional BSD protocols,based on the S3C44B0X chip with 132 kB,the communication stack is simplified as possible as it can.The test shows that the simplified TCP/IP protocol is robust,and the low-level communication of EFW can be guaranteed. |
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| Keywords: | embedded system distributed firewall TCP/IP |
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