一、 设置路由器管理信息
    1、用扁平控制线接上9孔接头，连接CONSOLE到终端或PC串口，设置终端或直接连至串口的超级终端的参数：BAND率9600,无奇偶校验，8位数据位，1位停止位。
    2、 路由器上电，终端屏幕会显示上电过程。
    3、 进入特权模式设置口令
    line vty 0 4
    password bc123
    exit
    enable secret bc123fzq123
    exit
    Cisco IOS On Unix 专题
    4、 在特权模式设置路由器信息：
    hostname bc3640
    ip domain-list jzl.cq
    ip domain-list jz2.cq
    ip domain-name jzl.cq
    ip name-sever 10.54.34.1
    5、 进入全局模式，配置以太网地址
    configure timinal
    interface fastethernet 0/0
    ip address 192.168.254.254 255.255.255.0
    no shutdown
    exit
    interface fastethernet 1/0
    ip address 10.154.34.253 255.255.255.252
    noshut down
    exit
    设置IP路由功能开放
    ip routing
    设置拨入客户名和口令
    username user1 password 123
    设置拨号组参数，为拨号客户指定ip地址
    line 65 72
    autoselect ppp
    modem inout
    transport inputall
    exit
    interface group-async1
    ip unnumbered fastethernet 1/0
    encapsulation ppp
    dialer in band
    dialer map ip 10.154.34.247 name user 1
    async default routing
    anync mode interactive
    peer default ip address pool default
    ppp authentication chap pap
    group-ranger 65 72 ;路由器远程拨入端口
    设置内部ospf路由协议、静态路由
    access-list 77 permit 10.154.34.0 0.0.1.255
    router ospf 110
    redistribute connected subnets
    redistribute static subnets
    passive-interface fastethernet 0/0
    network 10.154.34.0 0.0.255 area 0
    network 10.154.35.0 0.0.0.255 area 0
    distribute-list 77 out
    exit
    ip default-gateway 10.154.34.254
    Ip router 0.0.0.0 0.0.0.0 10.154.34.254
    Ip router 10.0.0.0 255.0.0.0 10.154.34.254
    Ip router 192.168.0.0 255.255.0.0 192.168.254.1
    设置NAT转换
    access-list 99 deny 192.168.3.1
    access-list 99 permit 192.168.3.0 0.0.0.255
    access-list 99 permit 192.168.0.0 0.0.255.255
    ip nat pool netdyn 10.154.35.1 10.154.35.126 netmask 255.255.255.0
    ip nat inside source list 99 pool netdyn overload
    ip nat inside source static 192.168.3.1 10.154.35.1
    interface fastethernet1/0
    ip nat outside
    exit
    interface group-async1
    ip nat outside
    exit
    interface fastethernet 0/0
    ip nat insider
    exit
    write memory

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