硬件要求，最低 cisco1720系列，8M Flash 32M Memory 以及WIC-1ENET模块和普通ADSL猫 就可实现拨号上网。 IOS要求12.2-4 XL5 配置如下： ip subnet-zero ip name-server 202.106.196.115 ! vpdn enable ! vpdn-group PPPoE request-dialin PRotocol pppoe ! interface FastEthernet0 ip address 192.168.1.1 255.255.255.0 ip nat inside duplex auto speed auto ! interface Ethernet0 no ip address pppoe enable pppoe-client dial-pool-number 1 ! interface Dialer1 mtu 1492 ip tcp adjust-mss 1452 ip address negotiated ip nat outside encapsulation ppp no ip mroute-cache dialer pool 1 dialer-group 1 no cdp enable ppp authentication pap chap callin ppp pap sent-username xxxxxxx passWord xxxx ppp chap hostname xxxxxx ppp chap password xxxx ! ip nat inside source list 1 interface Dialer1 overload ip classless ip route 0.0.0.0 0.0.0.0 Dialer1 permanent ! access-list 1 permit 192.168.1.0 0.0.0.255 dialer-list 1 protocol ip permit ! end
