Analysis of A PPPoA configuration case

In the previous article, we introduced the PPPoE configuration content. Of course, we are targeting the same network topology. How can we configure PPPoA in the same environment? Let's take a systematic look at the configuration process. For your reference.

PPPoA configuration Step 1: Configure vpdn

Vpdn enable (vpdn)

Vpdn-group office (create a vpdn group ,)

Request-dialin (initialize a vpnd tunnel and create a vpdn sub-group to which the request is dial ,)

Protocol pppoe (vpdn sub-group uses pppoe to establish a session tunnel)

Step 2 of PPPoA configuration: configure the interface for connecting the router to the adsl modem

Interface ATM0

No ip address

No atm ilmi-keepalive

Bundle-enable

Dsl operating-mode auto

Hold-queue 224 in

Interface ATM 0.1 point-to-point (ADSL communication relies on VC, so point-to-point VC must be set)

Pvc 1/1 (SET related PVC parameters, that is, VCI and VPI values)

Pppoe-client dial-pool-number 1

Step 3 of PPPoA configuration: configure the logical dialing interface:

Interface Dialer1

Ip address negotiated

Ip mtu 1492 (modify mtu value to apply to ADSL Network)

Ip nat outside

Encapsulation ppp

Dialer pool 1

Ppp authentication chap callin

Ppp chap hostname

Ppp chap password

Step 4 of PPPoA configuration: Configure internal network interfaces

Interface Ethernet0 (internal network interface)

Ip address 10.1.1.1 255.255.255.0

Ip nat inside enables NAT for this interface

Step 5 of PPPoA configuration: configure the router to provide dhcp services for internal network hosts

Ip dhcp excluded-address 10.1.1.1

Ip dhcp pool ABC

Import all (import dns and wins server)

Network 10.1.1.0 255.255.255.0

Default-router 10.1.1.1

Step 6 of PPPoA configuration: Configure NAT:

Access-list 1 permit 10.1.1.0 0.0.255

Ip nat inside source list 1 interface Dialer1 overload

Step 7 of PPPoA configuration: configure the default route

Ip route 0.0.0.0 0.0.0.0 Dialer1