網絡架構的過程中，有些硬件設置是可以交互使用的。路由器是我們常用到的網絡設備，但是我們要怎樣去配置它呢？怎樣才能實現ADSL上網和PPPOE撥號連接呢？本文給出了詳細配置命令。Implement ADSL and DHCP on Cisco 2600 Series Router下面的設置是在設置成功的路由器上導出來的, 使用的是以太口實現撥號和NAT.

!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname externalrp01
!
boot-start-marker
boot-end-marker
!
!
no network-clock-participate slot 1
no network-clock-participate wic 0
no aaa new-model
ip subnet-zero
ip cef
!
!
ip dhcp excluded-address 192.168.2.1 192.168.2.99
!
ip dhcp pool Pool1
network 192.168.2.0 255.255.255.0
dns-server 202.96.128.166
default-router 192.168.2.1
!
ip name-server 202.96.134.133
ip name-server 202.96.128.166
vpdn enable
!
vpdn-group pppoe
request-dialin
protocol pppoe
!
no ftp-server write-enable
!
!
!
!
interface FastEthernet0/0
ip address 192.168.2.1 255.255.255.0
ip nat inside
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
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 ***** password 0 ******
!
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
!
access-list 1 permit any
dialer-list 1 protocol ip permit
!
line con 0
line aux 0
line vty 0 4
!
!
!
end

至此路由器上實現ADSL PPPOE撥號連接和DHCP就完成了。