Cisco路由器的ADSL modem配置详解

发布时间:2017-06-06 15:21

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---vpnd)

vpdn-group office(建立一个vpdn组,)

request-dialin(初始化一个vpnd 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

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

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

conf t

hostname Adsl_walkbird

username walkbird password walkbird

vpdn enable

vpdn-group pppoe

accept-dialin

protocol pppoe

virtual-template 1

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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Cisco路由器的ADSL modem配置详解

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