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VPDN ON CISCO 1841 (LNS)

Hey guys,

i am writting VPDN session on cisco 1841 using as LNS component and a Router Netopia 3346 (LNC)

This is my code on cisco 1841

vpdn enable
!
vpdn-group 1
description VPN via l2tp
accept-dialin
  protocol l2tp
  virtual-template 1
terminate-from hostname vpnprato
force-local-chap
lcp renegotiation always
no l2tp tunnel authentication
l2tp tunnel receive-window 1024
!

interface Virtual-Template1
ip unnumbered FastEthernet0/1
keepalive 20
ppp authentication chap callin
ppp chap hostname vpnprato
ppp chap password 0 xxxx
!

Tunnel is up for few seconds after is disconnect !...

I enable l2x-errors on debug and i obtain this:

Oct 18 14:06:21.070: L2TP _____:01057:00000058:   XXXX<->YYYY (XXX=LNS IP; YYYY=LAC IP)
Oct 18 14:06:43.246: L2TP _____:01057:00000058:
Oct 18 14:06:43.250: L2TP _____:01057:00000058: Shutting down session
Oct 18 14:06:43.250: L2TP _____:01057:00000058:   Result Code
Oct 18 14:06:43.250: L2TP _____:01057:00000058:     Loss of carrier (1)
Oct 18 14:06:43.250: L2TP _____:01057:00000058:   Error Code
Oct 18 14:06:43.250: L2TP _____:01057:00000058:     No error (0)
Oct 18 14:06:43.250: L2TP _____:01057:00000058:   Vendor Error
Oct 18 14:06:43.250: L2TP _____:01057:00000058:     None (0)
Oct 18 14:06:43.250: L2TP _____:01057:00000058:   Optional Message
Oct 18 14:06:43.250: L2TP _____:01057:00000058:     "Locally generated disconnect"
Oct 18 14:06:43.250: L2TP _____:01057:00000058:
Oct 18 14:06:43.250: L2TP _____:01057:00000058: FSM-Sn ev App-Disc
Oct 18 14:06:43.250: L2TP _____:01057:00000058: FSM-Sn    in established
Oct 18 14:06:43.250: L2TP _____:01057:00000058: FSM-Sn do App-Disc-Active
Oct 18 14:06:43.254: L2TP _____:01057:00000058: Session down
Oct 18 14:06:43.254: L2TP _____:01057:00000058:   xxxx<->yyyyy (XXX=LNS IP; YYYY=LAC IP)
Oct 18 14:06:43.254: L2TP _____:01057:00000058: Destroying session
Oct 18 14:06:43.254: L2TP _____:01057:00000058: Request teardown data plane
Oct 18 14:06:43.254: L2TP tnl   01057:0000485C: FSM-CC ev Session-Disc
Oct 18 14:06:43.254: L2TP tnl   01057:0000485C: FSM-CC    in established
Oct 18 14:06:43.254: L2TP tnl   01057:0000485C: FSM-CC do Session-Disc-Est
Oct 18 14:06:43.254: L2TP tnl   01057:0000485C:   Session count now 0
Oct 18 14:06:43.254: L2TP tnl   01057:0000485C:   VPDN Session count now 0
Oct 18 14:06:43.254: L2TP tnl   01057:0000485C: FSM-CC ev No-Users
Oct 18 14:06:43.254: L2TP tnl   01057:0000485C: FSM-CC    established->Est-No-User
Oct 18 14:06:43.254: L2TP tnl   01057:0000485C: FSM-CC do No-Users
Oct 18 14:06:43.254: L2TP tnl   01057:0000485C: No more cc users, shutdown (likely) in 15 secs
Oct 18 14:06:43.254: L2TP _____:_____:________: Session detached
Oct 18 14:06:44.254: L2TP tnl   01057:0000485C: O Resend CDN, flg TLS, ver 2, len 88
Oct 18 14:06:45.290: L2TP tnl   01057:0000485C: Control connection authentication skipped/passed.

i don't understand where is the fault !

Do you have any ideas ?

thanks to all

Stefano

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