AR系列路由器使用ADSL做主用链路，普通拨号做备份链路的典型配置

AR系列路由器使用ADSL做主用链路，普通拨号做备份链路的典型配置

 

一 组网需求：

路由器RouterA通过ADSL线路和普通拨号线路与Internet相连，其中ADSL线路作为主用链路，普通拨号作为备用链路。当ADSL链路发生故障时，RouterA仍然可以发起PPP呼叫通过PSTN连接到Internet。

二 组网图：

              

三 配置步骤：

# 配置Dialer接口。

[Router] dialer-rule 1 ip permit

[Router] interface dialer 1

[Router-Dialer1] dialer user quidway

[Router-Dialer1] dialer-group 1

[Router-Dialer1] dialer bundle 1

[Router-Dialer1] ip address ppp-negotiate

[Router-Dialer1] standby interface analogmodem 1/0/0

# 配置Virtual-Ethernet接口。

[Router-Dialer1]interface virtual-ethernet 1

[Router-Virtual-Ethernet1] mac 0001-0002-0003

[Router-Virtual-Ethernet1] quit

[Router] interface atm 0/0/0

[Router-atm1/0/0] pvc to_adsl_a 0/60

[Router-atm-pvc-atm0/0/0-0/60-to_adsl_a] map bridge virtual-ethernet 1

[Router-atm-pvc-atm0/0/0-0/60-to_adsl_a] quit

# 配置PPPoE会话。

[Router-atm1/0/0] virtual-ethernet 1

[Router-virtual-Ethernet1] pppoe-client dial-bundle-number 1 idle-timeout 120

# 配置AM接口。

[Router-virtual-Ethernet1] interface analogmodem 1/0/0

[Router-analogmodem 1/0/0] link-protocol ppp

[Router-analogmodem 1/0/0] ip address ppp-negotiate

[Router-analogmodem 1/0/0] dialer enable-circular

[Router-analogmodem 1/0/0] dialer-group 1

[Router-analogmodem 1/0/0] dialer number 163

[Router-analogmodem 1/0/0] quit

# 配置到对端的静态路由。

[Router] ip route 0.0.0.0 0 dialer 1 preference 70