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ADSL 非固定IP配置
这个配置比起原来的有固定ip地址的配置要难很多，要考虑到方方面面的东西，在这里，大家可以少走弯路了：
vpdn enable
no vpdn logging
!
vpdn-group pppoe
request-dialin
protocol pppoe
!
interface Ethernet0
no shut
ip address
ip adjust-mss 1452
ip nat inside
no ip directed-broadcast
!
interface ATM0
no shut
no ip address
no ip directed-broadcast
no atm ilmi-keepalive
bundle-enable
!
interface ATM0.1 point-to-point
no ip directed-broadcast
pvc
pppoe-client dial-pool-number 1
!
!
interface Dialer1
ip address negotiated
mtu 1492
ip nat outside
encapsulation ppp
dialer pool 1
ppp chap hostname
ppp chap password
ppp pap sent-username
!
ip nat inside source list 1 interface Dialer1 overload
!
ip classless
ip route 0.0.0.0 0.0.0.0 dialer1
aclearcase/" target="_blank" >ccess-list 1 permit
