Complete the configuration of ADSL PPPoA in five simple steps

We have explained the PPPoE settings in the previous article. Here we will focus on the configuration of ADSL PPPoA. There are a total of five steps. I believe you can have a detailed understanding of this process after reading the article. ADSL PPPoA configuration environment: LAN ----- (e0) rom0 (atm0) ----- ISP communication line, which must be configured with an ADSL card.

ADSL PPPoA configuration 1. Configure the ATM interface

 
 

  
  
The Router (config) # interface atm 0/0
  
  
Router (config) # no ip address
  
  
Router (config) # dsl operating-mode auto
  
  
Router (config-if) # pvc 8/35 specifies the vpi/vci value. You can ask ISP)
  
  
Router (config-if-atm-vc) # encapsulation aal5mux ppp dialer sets encapsulation for PPPoA and encapsulates it as adaptation layer 5AAL5) in mux mode)
  
  
Router (config-if-atm-vc) # bind dialer pool-number 1 to dialer profile)
  
  
Note: dsl operating-mode auto is enabled on the ATM interface by default. The signal modulation mode can be automatically negotiated.
 
 

ADSL PPPoA configuration 2. Define the Dialer Port

 
 

  
  
Router (config) # interface dialer0
  
  
Router (config) # ip address negotiated uses IPCP to negotiate with the router of the ISP to obtain the network address)
  
  
Router (config) # ip nat outside PAT configuration section, which is detailed in section 4)
  
  
Router (config) # encapsulation ppp
  
  
Router (config) # dialer pool 1
  
  
Router (config) # ip mtu 1492
  
  
Router (config) # ppp chap hostname cisco
  
  
Router (config) # ppp chap password cisco
 
 

ADSL PPPoA configuration 3. Define PAT

 
 

  
  
Router(config)#interface ethernet0  
  
  
Router(config-if)#ip address 10.0.0.1 255.0.0.0  
  
  
Router(config-if)#ip nat inside  
  
  
Router(config-if)#exit  
  
  
Router(config)#interface dialer0  
  
  
Router(config-if)#ip nat outside  
  
  
Router(config-if)#exit  
  
  
Router(config)#ip nat inside source list 101 interface dialer0 overload  
  
  
Router(config)#access-list 101 permit ip 10.0.0.0 0.255.255.255 any 
 
 

ADSL PPPoA configuration 4. Define the DHCP server and assign an internal IP address

 
 

  
  
Router (config) # ip dhcp pool subteam
  
  
Router (config-pool) # import all the DNS and WIN addresses obtained through IPCP negotiation to the DHCP database for publishing to the Client)
  
  
Router (config-pool) # network 10.0.0.0 255.0.0.0
  
  
Router (config-pool) # default-router 10.0.0.1 gateway address, that is, the internal Ethernet port address of the Router)
 
 

ADSL PPPoA configuration 5. Define static routes

 
 

  
  
Router(config)#ip route 0.0.0.0 0.0.0.0 dialer0