PPPoe configuration not working

[chamaraw07]

Hi

im trying to configure PPPoE on a cisco router which is connected to  an ADSL router , i have set the D-Link ADSL router in bridge mode,

my ISPs encapsulation is LLC-SNAP ,what does it mean,  how do i configure this , appreciate your help ,thanks

interface FastEthernet0/0
 no ip address
 duplex auto
 speed auto
 pppoe enable group global
 pppoe-client dial-pool-number 10

interface Dialer1
 ip address negotiated
 encapsulation ppp
 dialer pool 10
 ppp authentication pap
 ppp pap sent-username uxxxxxx password 0 pxxxxxx
 ppp ipcp route default

[Mark Malone]

PPPoA supports LLC-SNAP not PPPoE are you sure its PPPoE?

[chamaraw07]

im not sure if its PPPoE or PPPoA , if its PPPoA then how do i configure it on the cisco router?

i cannot see any option for  LLC-SNAP  encapsulation on the cisco router

thaks

[Mark Malone]

Yes im pretty sure PPPoE does not support LLC , you would need an ATM interface on your router if its PPPoA

Basically its the exact same as what you have done above but you use the ATM interface instead of Ethernet and under the ATM you would set the LLC encapsulation under the ATM

Instead of MUX that's where LLC would go

Router(config)#interface atm 0
Router(config-if)#pvc
Router(config-if-atm-vc)#en aal5mux ppp dialer
Router(config-if-atm-vc)#dialer pool-member 1
Router(config-if-atm-vc)#no shutdown

[Mark Malone]

This is for an 800 series but the config is generic for every model that supports it

http://www.cisco.com/c/en/us/support/docs/routers/800-series-routers/12886-827pppoa-chap.html

[chamaraw07]

so i would need an atm interface module installed on the cisco router?

also the adsl router is connected to the PSTN line, so does it work on atm as well, is there a way i could find exactly if its PPPoE or PPPoA

[Mark Malone]

Yes whoevers providing the line is the ISP with the technology they sold it too you and provide the line they will know because they will have it set on their end so you can connect to them. That information is provided when you buy it

PSTN line should have nothing to do with ATM , PSTN is usually connected to another interface serial with E1/T1 or an ISDN BRI interface. Is it a primary rate or basic rate PSTN line , if PRI it will be serial usually, if BRI usually ISDN interface

If its PPPoA you need an ATM interface no way around it its using that type of technology not Ethernet

[chamaraw07]

Thanks mark, ill try to gather more info abt the connection to find out which type it is,