version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 2621
!
enable secret cisco
!
ip subnet-zero
ip name-server 202.106.196.115
!
vpdn enable
!
vpdn-group PPPoE
request-dialin
protocol pppoe
!
interface FastEthernet0/0
ip address 10.0.0.1 255.255.255.0
ip nat inside
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
speed 10
half-duplex
pppoe enable
pppoe-client dial-pool-number 1
!
interface Dialer1
mtu 1492
ip address negotiated
ip nat outside
encapsulation ppp
no ip mroute-cache
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication pap callin
ppp pap sent-username Y.LIU password CCIE
!
ip nat inside source list 1 interface Dialer1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1 permanent
no ip http server
ip pim bidir-enable
!
access-list 1 permit any
dialer-list 1 protocol ip permit
!
line con 0
line aux 0
line vty 0 4
password cisco
login
!
end
值得注意的是有的地区需要用chap认证方式，这时相应的指令为：
ppp authentication chap callin
ppp chap hostname Y.LIU
ppp chap password CCIE
相关调试命令：
no vpdn logging 关闭连接中的提示
ze=3>debug vpdn pppoe-events 检查PPPoE连接建立过程
show vpdn 检查建立的PPPoE连接
debug ppp negotiation 检查PPP参数协商情况
debug ppp authentication 检查PPP用户认证情况
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