Re: PPPoE to L2TP

From: Siva Valliappan (svalliap@cisco.com)
Date: Tue Apr 10 2001 - 18:49:29 EDT


>
> Siva, et al.
>
> Can a 6400 act as a PPPoE LAC, terminate the PPPoE and send PPP frames
> through an L2TP tunnel for authentication? How would this be configured?

yes it can. so can any other IOS router that supports PPPoE termination.
the configuration for l2tp is as for any other l2tp based LAC. so
configure the router to terminate PPPoE, and configure it for l2tp.
here's one example for a 3640 from when i was testing PPPoEo802.1q into
l2tp:

LAC:

!
vpdn-group 1
 request-dialin
  protocol l2tp
  domain foo
  domain foo.com
 initiate-to ip 172.16.175.54
 local name esc-3640-5
!
vpdn-group pppoe
 accept-dialin
  protocol pppoe
  virtual-template 1
 pppoe limit per-mac 500
 pppoe limit per-vc 500
!
!
interface Virtual-Template1
 no ip address
 no ip route-cache
 ppp authentication chap pap
!

and i had configured "pppoe enable" on the 802.1 subinterface. in the
case of the 6400 since you will be doing PPPoEoA, you will just enable
the given ATM VC for PPPoE termination. have a vpdn-group for PPPoE,
and another vpdn-group for l2tp. and you can throw in AAA into the
picture as well.

cheers
.siva

>
> Best Regards,
> Chris
>



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