CISCO路由器連接ADSL之PPPoE配置

 很多公司使用ADSL寬帶線路作爲備份線路，同時作爲內部上網的分流線路。這有兩種配置：一種是cisco路由器連接ethernet接口連接ADSL的modem；一種是在cisco路由器上安裝ADSL WIC卡，直接連接ADSL電話線。

 

Cisco路由器連接ADSL modem的PPPoE配置：........................................................ 1

Cisco路由器連接ADSL WIC卡之PPPoE配置：........................................................ 3

 

Cisco路由器連接ADSL modem的PPPoE配置：

 

hostname bjsite 
! 
ip subnet-zero 
no ip domain-lookup 
! 
vpdn enable 
no vpdn logging 
! 
vpdn-group 1 
request-dialin 
protocol pppoe 
! 
interface Ethernet0/0 
ip address 192.168.0.1 255.255.255.0 
ip nat inside 
no ip mroute-cache 
! 
! 
! 
! 
interface Ethernet0/1 
no ip address 
pppoe enable 
pppoe-client dial-pool-number 1 
! 
interface Dialer1 
ip address negotiated 
ip nat outside 
ip mtu 1492 
encapsulation ppp 
no ip mroute-cache 
dialer pool 1 
dialer-group 1 
ppp authentication pap 
ppp pap sent-username [email protected] password xxxxxxxx
! 
ip classless 
no ip http server 
! 
dialer-list 1 protocol ip permit 
ip nat inside source list 1 interface Dialer1 overload
ip route 0.0.0.0 0.0.0.0 dialer1 
access-list 1 permit 192.168.0.0 0.0.0.255 
! 
line con 0 
exec-timeout 0 0 
transport input none 
line vty 0 4 
login 
! 
end

 

Cisco路由器連接ADSL WIC卡之PPPoE配置：

vpdn-group pppoe 
request-dialin 

!--- we are the PPPoE client requesting to establish 
!--- a session with the aggregation unit (6400 NRP). 

protocol pppoe 
! 


!--- internal Ethernet network.

! 
interface FastEthernet0 
ip address 10.92.1.182 255.255.255.0 
ip nat inside 


!--- DSL interface.

! 
interface ATM0 
no ip address 
no atm ilmi-keepalive
bundle-enable
dsl operating-mode auto
hold-queue 224 in

!--- All defaults.




!--- PPPoE runs on top of AAL5SNAP, but the 
!--- encap aal5snap command is not used. 

! 
interface ATM0.1 point-to-point 
pvc 1/1 
pppoe-client dial-pool-number 1

!--- pvc 1/1 is an example value that must be changed 
!--- to match the value used by the ISP. 

! 



!--- The PPPoE client code ties into a dialer interface upon 
!--- which a virtual-access interface is cloned. 

! 
interface Dialer1 
ip address negotiated 
ip mtu 1492

!--- Ethernet MTU default = 1500 (1492 + PPPoE headers = 1500)

ip nat outside 
encapsulation ppp 
dialer pool 1

!--- Ties to atm interface. 

ppp authentication chap callin 
ppp chap hostname <username> 
ppp chap password <password>
! 

!--- The ISP will instruct you regarding 
!--- the type of authentication to use. 
!--- To change from PPP CHAP to PPP PAP, 
!--- replace the following three lines:
!--- ppp authentication chap callin 
!--- ppp chap hostname <username> 
!--- ppp chap password <password> 
!--- with the following two lines:
!--- ppp authentication pap callin
!--- ppp pap sent-username <username> password <password>


!--- For NAT we are going to overload on the Dialer1 
!--- interface and add a default route out 
!--- since dialer ip address can change. 

ip nat inside source list 1 interface Dialer1 overload 
ip classless 
ip route 0.0.0.0 0.0.0.0 dialer1 
no ip http server 
! 
access-list 1 permit 10.92.1.0 0.0.0.255