合众安全数据交换系统 白皮书 Version 4.0 杭州合众信息工程有限公司 2009 年 10 月 合众安全数据交换系统白皮书 杭州合众信息工程有限公司 2 内容目录 1 . 背景 .................................................................................................................................................. 3 2 . 需求分析 .......................................................................................................................................... 4 2 .1 . 安全威胁 ................................................................................................................................. 4 2 .2 . 传统防御技术及其缺点.......................................................................................................... 5 2 .2 .1 . 防火墙防御技术 ............................................................................................................. 5 2 .2 .2 . 防火墙防御技术的缺点 ................................................................................................. 6 2 .2 .3 . 网闸防御技术 ................................................................................................................. 6 2 .2 .4 . 网闸防御技术的缺点 ..................................................................................................... 7 2 .3 . 应对方法 ............................................................................................................................... 1 1 3 . 产品概述 ........................................................................................................................................ 1 2 3 .1 . 产品简介 ............................................................................................................................... 1 2 3 .2 . 产品原理 ............................................................................................................................... 1 3 3 .3 . 产品优势 ...............
