[cisco-bba] IP DSLAM & PPPoE question

Dennis Peng dpeng at cisco.com
Wed Aug 20 08:45:44 EDT 2003

Anastassios Chatzithomaoglou [achatz at forthnet.gr] wrote:
> We are testing some ip dslam equipment and i have some questions.
> The dslam supports RFC1483 only, so i suppose PPP can be transfered over it 
> and terminated to another router (PPPoE). The dslam acts like a bridge so 
> its uplink ethernet interface has to be connected to an ethernet interface 
> of a bbras.
> What config do i need in the bbras in order to "recognise" these pppoe 
> sessions and terminate them locally?

Something like:

vpdn enable
vpdn-group pppoe
  protocol pppoe
  virtual-template 1
int fastethernet0/0
 pppoe enable
interface virtual-template 1

> Can a 7200/7100 be used for such a 
> scenario?

Yes. Or if you don't need as many sessions aa 3600/3700 would also do.

> From customer's side the dsl cpe supports only RFC1483, so i support a 
> software PPPoE client is required on client's PC.



> -- 
> ***********************************
>    Chatzithomaoglou Anastasios
> Network Design & Operations Center
>           FORTHnet S.A.
>       <achatz at forthnet.gr>
> ***********************************
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