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阅读下列广域网基本技术的应用，分析器的配置命令，将入(n)处的内容写在对应栏内。 实例：通过Cisco2501 连接A局域网与B局域网，如图5-1所示。 假设实验条件如下： A网：202.96.199.0～0202.96.199.255 B网：202.97.76.0～202.97.76.31 DNS Server：202.96.199.2(主)，202.96.199.3(备) 所属域：xxx.com 广域网互联：需要一个包含4个IP地址(2个可用IP)的子网，：202.98.0.0～ 202.98.0.3，其中202.98.0.1给A网，202.98.0.2给B网，互联专线速率：128kbps。具体网络参数分配表如下： 首先进入器：将计算机串行口连接到器的Console 口，使用Netterm 或者超级终端之类的软件登录。 Router＞en passwd：******(输入超级口令) 全局配置：(A、B网相同) Router config terminal(切换到配置状态) Router (config)enable secret my-root-password(定义超级口令) Router(config)ip host Router-A(定义器名，B网为Router-B) Router(config)ip domain-name (1) Router(config)nameserver 202.96.199.2(定义主域名服务器) Router(config)nameserver202.96.199.3(定义备域名服务器) Router(config)ip classless Router(config)line (2) (定义5个telnet虚终端，即可以同时有5个人登录本器) Router(con6g—1ine)password my-telnet-password(定义telnet口令) Router(conhZ-line)exit Router(config)exit 地址和配置： /***** A网器 ******/ Router-Aconfig terminal(切换到配置状态) Router-A(config)interface e0(配置Ethernet 0 口) Router-A(config-if)gdescliption the LAN port link to my local network(端口说明) Router-A(comfig-if)ip address (3) Router-A(config-if)noshutdown(激活端口) Router-A(config-if)exit Router-A(config)interface s0(配置 Serial 0 口) Router-A(config-if)descdption the WAN port link to Router-B(端口说明) Router-A(config-if)ip add 202.98.0.1 255.255.255.252(定义互联广域网p地址) Router-A(config-if)bandwidth 128(定义端口速率，单位：kbps) Router-A(config-if)no shutdown(激活端口) Router-A(config-if)exit Router-A(config)ip route (4) Router-A(config)exit Router-Awr m(保存配置) /***** B网器 ******/ Router-Bconfig terminal Router-B(config)interface e0 Router-B(config-if)description the LAN port link to my local network(端口说明) Router-B(config-if)ip add 202.97.76.1 255.255.255.224 (定义以太网IP地址，子网掩码表示为拥有32个地址的子网) Router-B(config-if)no shutdown Router-B(config-if)exit Router-B(config)interface s0 Router-B(config-if)escdption the WAN port link to Router-A(端口说明) Router-B(config-if)ip add 202.98.0.2255.255.255.252 Router-B(config-if)bandwid 128 Router-B(config-if)no shutdown Router-B(config-if)exit Router-B(config)ip route (5) Router-B(config)exit Router-Bwr m(保存配置) 配置完成。
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