使用ppp/pap作认证 ppp authentication pap callin 指定接口属于拨号组1 dialer-group 1 定义拨号组1允许所有IP协议 dialer-list 1 protocol ip permit 设定拨号，号码为2633 dialer string 2633 设定登录263的用户名和口令 ppp pap sent-username 263 password 263 设定默认路由 ip route 0.0.0.0 0.0.0.0 bri 0 设定符合访问列表2的所有 源地址被翻译为bri 0所拥有的地址 ip nat inside source list 2 interface bri 0 overload 设定访问列表2，允许所有协议 access-list 2 permit any 具体配置如下： hostname Cisco2503 ! isdn switch-type basic-net3 ! ip subnet-zero no ip domain-lookup ip routing ! interface Ethernet 0 ip address 10.0.0.1 255.255.255.0 ip nat inside no shutdown ! interface Serial 0 shutdown no des cription no ip address ! interface Serial 1 shutdown no des cription no ip address ! interface bri 0 ip address negotiated ip nat outside encapsulation ppp ppp authentication pap callin ppp multilink dialer-group 1 dialer hold-queue 10 dialer string 2633 dialer idle-timeout 120 ppp pap sent-username 263 password 263 no cdp enable no ip split-horizon no shutdown ! ip classless ! ! Static Routes ! ip route 0.0.0.0 0.0.0.0 bri 0 ! ! Access Control List 2 ! access-list 2 permit any ! dialer-list 1 protocol ip permit ! ! Dynamic NAT ! ip nat inside source list 2 interface bri 0 overload snmp-server community public ro ! line console 0 exec-timeout 0 0 ! line vty 0 4 ! end
>set system c765 c765> set multidestination on c765> set switch net3 c765> set ppp multilink on c765> cd lan c765:LAN> set ip routing on c765:LAN> set ip address 10.0.0.1
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