!
version 15.5
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
!
aaa authentication login userauth local
aaa authentication ppp pppauth local
aaa authorization network groupauth local 
!
vpdn enable
!
vpdn-group 1
!
vpdn-group L2TP_VPN-ipsec
 ! Default L2TP VPDN group
 accept-dialin
  protocol l2tp
  virtual-template 3
 no l2tp tunnel authentication
!
crypto isakmp policy 10
 encr 3des
 authentication pre-share
 group 2
 lifetime 1800
crypto isakmp key ******** address 0.0.0.0         no-xauth
!
crypto ipsec transform-set L2TP-TS esp-aes 256 esp-sha-hmac 
 mode transport
crypto ipsec transform-set L2TP-TS2 esp-aes esp-sha-hmac 
 mode transport
crypto ipsec transform-set L2TP-TS3 esp-3des esp-md5-hmac 
 mode transport
!
crypto dynamic-map VPN-dynamic-map 10
 set nat demux
 set security-association lifetime seconds 28800
 set transform-set L2TP-TS L2TP-TS2 L2TP-TS3 
!
!
crypto map VPN-Map 10 ipsec-isakmp dynamic VPN-dynamic-map 
!
interface GigabitEthernet0/0
 switchport access vlan 10
 no ip address
!
interface GigabitEthernet0/1
 switchport access vlan 10
 no ip address
!
interface GigabitEthernet0/2
 switchport access vlan 10
 no ip address
!
interface GigabitEthernet0/3
 switchport access vlan 10
 no ip address
!
interface GigabitEthernet0/4
 description To PPPoE Router
 ip address 10.10.10.254 255.255.255.0
 duplex auto
 speed auto
 crypto map VPN-Map
!
interface Virtual-Template3
 description L2TP_VPN access interface
 ip unnumbered GigabitEthernet0/4
 ip mtu 1280
 peer default ip address pool VPN_POOL
 ppp authentication ms-chap-v2 ms-chap chap pppauth
!
interface Vlan10
 ip address 192.168.10.1 255.255.255.0
 ip tcp adjust-mss 1328
!
ip local pool VPN_POOL 192.168.10.20 192.168.10.24
!