[cisco-nas] L2TP LAC to LNS

[Alex Foster]

Hi,

Is it possible to unconditionally establish an l2tp tunnel between a LAC
and an LNS.  Im trying to do this with a Cisco 857 (call this the LAC)
and a 7206 (call this the LNS).  The 857 has an established PPPoA
session with an ADSL provider and I am trying to piggy-back the L2TP
tunnel over this to an LNS on the public network.  There is no client
connection initiating the L2TP tunnel (on the LAC) so I want the L2TP
tunnel to establish unconditionally.  I have tried the following config
on the 857 without success (Im happy with the config. on the LNS).  Is
this possible??  

vpdn enable
!
vpdn-group 1
! Default L2TP VPDN group
 request-dialin
  protocol l2tp
 initiate-to ip x.x.x.x priority 1
!
interface ATM0
 no ip address
 no ip route-cache cef
 no ip route-cache
 no atm ilmi-keepalive
 dsl operating-mode auto 
!         
interface ATM0.1 point-to-point
 no ip route-cache
 pvc 0/38 
  encapsulation aal5mux ppp dialer
  dialer pool-member 1
 !
interface Vlan1
 ip address 10.60.4.129 255.255.255.192
 ip helper-address 10.50.32.32
 ip nat inside
 ip virtual-reassembly
!
interface Dialer0
 ip address negotiated
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 dialer pool 1
 no peer neighbor-route
 no peer default ip address
 no cdp enable
 ppp authentication chap callin
 ppp chap hostname xxxxxxxxx
 ppp chap password 0 xxxxxxxxxx
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0
!         



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