《Internet接入》PPT课件

《《Internet接入》PPT课件》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、第3章接入Internet本章的主要任务是了解并掌握几种主要的Internet连接方式，学习Internet的接入、局域网接入及拨号网络接入的理论与操作。本章学习目标：Internet的接入局域网接入拨号网络http://www.gelishfw.com/http://www.gybcny.com/http://www.hd8go.com/http://www.sj93.cn/http://www.mdwxz88.com/http://www.oemgc.com/http://www.189288.com/http://w

2、ww.hzp580.comhttp://www.yjoem.com/http://www.oemdg.com/http://www.oemfy.com/http://www.xcdnpx.com/http://www.yanjigz.com/http://www.189286.com/http://www.xcdnpx.com/http://www.dgxcdn.comhttp://www.dgxcpx.com/http://www.xcwxpx.com/http://www.xunchi-px.com/http://ww

3、w.donghuijc.com/http://www.oemfy.com/http://www.0759mz.com/http://www.lczx188.com/http://www.189287.com/http://www.ystdzkj.com/http://www.023gree.com/http://www.glwxz.com/http://www.023midea.net/http://www.023chigo.com/http://www.023aux.com/http://www.023haier.net

4、/http://www.023xiu.com/http://www.51xiu.org/http://www.023vatti.com/http://www.meidix.com/http://www.ystdzkj.com/http://www.ystmach.com/http://www.ystcode.com/http://www.hthqdb.com/http://www.023midea.net/bbs/http://www.gz-bestally.com/http://www.gz-bestally.com/h

5、ttp://cwb1024.blog.163.com/manage/#m=0&t=0http://blog.sina.com.cn/http://www.gz-bestally.com/www.gzdzbjbw.com/adminbeat/index.asphttp://www.ystmach.com/bbs/forum.phphttp://www.ystcode.com/bbs/forum.php3.1Internet的接入3.1.1任务一认识Internet服务提供者1.ISP简介ISP是向社会提供公共Internet

6、访问服务的公司和商业机构，其作用是帮助用户接入Internet,并且向用户提供各种类型的信息服务，让大众能在家里或工作场所连上互联网，达到共享、访问资源的目的。在建设过程中，ISP首先建立主干线路将自己和互联网连接起来，然后让用户通过它来访问互联网，如图3.1所示的结构，个人用户便能轻易地连到互联网上，使用或共享资源。3.1Internet的接入图3.1一般家庭或中小企业的上网方式ISP互联网主干线路传输线路个人计算机http://www.gelishfw.com/http://www.gybcny.com/http://

7、www.hd8go.com/http://www.sj93.cn/http://www.mdwxz88.com/http://www.oemgc.com/http://www.189288.com/http://www.hzp580.comhttp://www.yjoem.com/http://www.oemdg.com/http://www.oemfy.com/http://www.xcdnpx.com/http://www.yanjigz.com/http://www.189286.com/http://www.xcd

8、npx.com/http://www.dgxcdn.comhttp://www.dgxcpx.com/http://www.xcwxpx.com/http://www.xunchi-px.com/http://www.donghuijc.com/http://www.oemfy.com/http://w