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Cisco路由器的ADSL modem配置详解

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  Cisco路由器的ADSL modem配置详解具体的方法

  路由器接入ADSL配置详解

  1、Cisco路由器连接ADSL modem的PPPoE配置: 说明:此案例为北京电信adsl PPPoE接入,需要使用一个普通adsl modem和一台cisco 2500路由器(双以太口),IOS 12.2(15)T,能够实现局域网共享上网.

  此案例配置共分7步:

  第一步:配置vpdn vpdn e

  1、Cisco路由器连接ADSL modem的PPPoE配置:

  说明:此案例为北京电信adsl PPPoE接入,需要使用一个普通adsl modem和一台cisco 2500路由器(双以太口),IOS 12.2(15)T,能够实现局域网共享上网.

  此案例配置共分7步:

  第一步:配置vpdn

  vpdn enable(启用路由器的虚拟专用拨号网络---d)

  vpdn-group office(建立一个vpdn组,)

  request-dialin(初始化一个d tunnel,建立一个请求拨入的vpdn子组,)

  protocol pppoe(vpdn子组使用pppoe建立会话隧道)

  第二步: 配置路由器连接adsl modem的接口

  interface Ethernet1

  no ip address

  pppoe enable允许以太接口运行pppoe

  pppoe-client dial-pool-number 1将以太接口的pppoe拨号客户端加入拨号池1

  第三步:配置逻辑拨号接口:

  interface Dialer1

  ip address negotiated从adsl服务商动态协商得到ip地址

  ip nat outside为该接口启用NAT

  encapsulation ppp为该接口封装ppp协议

  dialer pool 1该接口使用1号拨号池进行拨号

  dialer-group 1该命令对于pppoe是意义不大的

  ppp authentication pap callin启用ppp pap验证

  ppp pap sent-username xxxxxxx password 0 yyyyyyy使用已经申请的用户名和口令

  第四步:配置内部网络接口

  interface Ethernet0(内部网络接口)

  ip address 10.1.1.1 255.255.255.0

  ip nat inside为该接口启用NAT

  第五步:配置路由器为内部网络主机提供dhcp服务

  ip dhcp excluded-address 10.1.1.1

  ip dhcp pool ABC

  import all(导入dns和wins server)

  network 10.1.1.0 255.255.255.0

  default-router 10.1.1.1

  第六步:配置NAT:

  access-list 1 permit 10.1.1.0 0.0.0.255

  cc

  第七步:配置缺省路由

  ip route 0.0.0.0 0.0.0.0 Dialer1

  2、Cisco路由器连接ADSL WIC卡之PPPoE配置解:

  !

  vpdn enable

  no vpdn logging <=由于ADSL的PPPoE应用是通过虚拟拨号来实现的所以在路由器中需要使用VPDN的功能

  !

  vpdn-group pppoe <=为PPPoE启动了VPDN的进程

  request-dialin

  protocol pppoe <=设置拨号协议为PPPoE

  !

  interface FastEthernet0 <=设置公司内部网络地址

  ip address 192.168.0.1 255.255.255.0

  ip nat inside <=为启用NAT转换,设置Fast ethernet端口为内部网络,从内部网络收到的数据的原地址转换为公网地址

  !

  interface ATM0/0 <=设置ADSL端口

  no ip address <=请不要设置地址

  no atm ilmi-keepalive

  bundle-enable

  dsl operating-mode auto

  hold-queue 224 in

  interface ATM0/0.1 point-to-point <=ADSL的通讯 依靠VC,所以必须设定点到点VC

  pvc 8/81 <=设置PVC的相关参数, 即VCI和VPI的值,如果不清楚请向局端查询

  pppoe-client dial-pool-number 1 <=PPPoE拨号进程使用了常规的拨号进程,这里引用了dialer-pool 1

  !

  interface Dialer1 <=建立一个虚拟拨号端口 ip address negotiated <=由于局端提供动态地址,所以必须设定地址为协商获得

  ip mtu 1492 <=修改mtu值以适用于ADSL网络

  ip nat outside <=为启用NAT转换,设置该端口为外部网络

  encapsulation ppp <=使用PPP的帧格式

  dialer pool 1

  ppp authentication pap callin <=设置拨号的验证方式为pap

  ppp pap sent vip pass vip <=发送用户名和密码

  ip nat inside source list 1 interface Dialer1 overload <=设置了NAT的转换方式,使用了dialer 1端口的动态地址

  !

  ip classless

  ip route 0.0.0.0 0.0.0.0 dialer1 <=将所有不可路由的数据报转发给ADSL线路,设定缺省路由

  no ip http server

  !

  access-list 1 permit 192.168.0.0 0.0.0.255

  -------------------------------------

  Cisco路由器连接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 dg48907653@163.gd 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路由器连接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

  -------------------------------------------

  用cisco路由器做PPPoE Server端配置

  en

  conf t

  hostname Adsl_walkbird

  username walkbird password walkbird

  vpdn enable

  vpdn-group pppoe

  accept-dialin

  protocol pppoe

  virtual-template 1

  exit

  exit

  interface ethernet 0/0

  pppoe enable

  no shutdown

  interface virtual-template 1

  mtu 1492 //PPP头部最大传输单元

  ip unnumbered loopback //借用地址

  peer default ip address pool pppoe_ip_pool

  encapsulation ppp

  ppp authentication pap

  exit

  ip local pool pppoe_ip_pool 11.11.11.10 11.11.11.100

  interface lookback0

  ip address 1.1.1.1 255.255.255.0

  no shutdown

  exit

  三、实验测试

  sh ip route

  sh ip int brief

  debug pppoe event

  sh ip int dialer 1

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