C841-WAN(config)#do sh ru
Building configuration...

Current configuration : 3462 bytes
!
! Last configuration change at 16:56:53 JST Sun Jul 11 2021 by user
!
version 15.5
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname C841-WAN
!
boot-start-marker
boot-end-marker
!
!
enable password 789
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aaa new-model
!
!
aaa authentication ppp VPDN_AUTH local
!
!
!
!
!
aaa session-id common
ethernet lmi ce
clock timezone JST 9 0
!
!
!
!
!
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!


!
!
ip dhcp pool vlan 91
 network 192.168.91.0 255.255.255.0
 dns-server 192.168.91.254
 default-router 192.168.91.254
!
!
!
ip cef
no ipv6 cef
!
!
multilink bundle-name authenticated
vpdn enable
!
vpdn-group L2TP
 ! Default L2TP VPDN group
 accept-dialin
  protocol l2tp
  virtual-template 1
 no l2tp tunnel authentication
!
!
license udi pid C841M-8X-JAIS/K9 sn FGL200324YJ
!
!
username user privilege 0 password 0 456
username admin privilege 15 password 0 123
!
redundancy
!
!
!
!
!
!
!
crypto isakmp policy 1
 encr 3des
 authentication pre-share
 group 2
crypto isakmp key cisco123 address 0.0.0.0
!
!
crypto ipsec transform-set L2TP-Set2 esp-3des esp-sha-hmac
 mode transport
!
!
!
crypto dynamic-map dyn-map 10
 set nat demux
 set transform-set L2TP-Set2
!
!
crypto map outside_map 65535 ipsec-isakmp dynamic dyn-map
!
!
!
!
!
interface Loopback1
 description loopback for IPsec-pool
 ip address 1.1.1.11 255.255.255.255
 ip nat inside
 ip virtual-reassembly in
!
interface GigabitEthernet0/0
 description ### LAN ###
 switchport trunk native vlan 91
 switchport mode trunk
 no ip address
!
interface GigabitEthernet0/1
 description ### LAN ###
 switchport trunk native vlan 91
 switchport mode trunk
 no ip address
!
interface GigabitEthernet0/2
 description ### LAN ###
 switchport trunk native vlan 91
 switchport mode trunk
 no ip address
!
interface GigabitEthernet0/3
 description ### LAN ###
 switchport trunk native vlan 91
 switchport mode trunk
 no ip address
!
interface GigabitEthernet0/4
 description ### LAN ###
 switchport trunk native vlan 91
 switchport mode trunk
 no ip address
!
interface GigabitEthernet0/5
 description ### LAN ###
 switchport trunk native vlan 91
 switchport mode trunk
 no ip address
!
interface GigabitEthernet0/6
 description ### LAN ###
 switchport trunk native vlan 91
 switchport mode trunk
 no ip address
!
interface GigabitEthernet0/7
 description ### LAN ###
 switchport trunk native vlan 91
 switchport mode trunk
 no ip address
!
interface GigabitEthernet0/8
 description ### WAN InterNet ###
 ip address dhcp
 ip nat outside
 ip virtual-reassembly in
 duplex auto
 speed auto
 crypto map outside_map
!
interface GigabitEthernet0/9
 no ip address
 duplex auto
 speed auto
!
interface Virtual-Template1
 ip unnumbered Loopback1
 peer default ip address pool l2tp-pool
 ppp authentication ms-chap-v2 VPDN_AUTH
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan91
 ip address 192.168.91.254 255.255.255.0
 ip nat inside
 ip virtual-reassembly in
!
ip local pool l2tp-pool 1.1.1.1 1.1.1.10
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip dns server
ip nat inside source list 1 interface GigabitEthernet0/8 overload
ip route 0.0.0.0 0.0.0.0 dhcp
!
!
!
access-list 1 permit 192.168.91.0 0.0.0.255
access-list 1 permit 1.1.1.0 0.0.0.255
!
!
!
control-plane
!
!
!
line con 0
 logging synchronous
 no modem enable
line vty 0 4
 logging synchronous
 transport input telnet
!
scheduler allocate 20000 1000
ntp server 133.243.238.243
!
end

C841-WAN(config)#
C841-WAN(config)#