Router#
Router#sh run
Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
!
ip subnet-zero
!
!
crypto isakmp policy 10
 authentication pre-share
 group 2
crypto isakmp key abc123 address 172.26.106.1   
!
!
crypto ipsec transform-set testset esp-des esp-sha-hmac 
!
!
crypto map testmap 10 ipsec-isakmp  
 set peer 172.26.106.1
 set transform-set testset 
 match address 101
!
!
!
interface Ethernet0
 description 'Inside net'
 ip address 10.3.5.1 255.255.255.0
 no ip directed-broadcast
!
interface Ethernet1
 description 'Outside net'
 ip address 172.25.105.1 255.0.0.0
 no ip directed-broadcast
 crypto map testmap
!
interface Serial0
 no ip address
 no ip directed-broadcast
 no ip mroute-cache
 shutdown

!
interface Serial1
 no ip address
 no ip directed-broadcast
 shutdown
!
ip classless
ip route 10.1.1.0 255.255.255.0 172.21.101.1
ip route 10.1.3.0 255.255.255.0 172.23.103.1
ip route 10.2.2.0 255.255.255.0 172.22.102.1
ip route 10.2.4.0 255.255.255.0 172.24.104.1
ip route 10.4.6.0 255.255.255.0 172.26.106.1
!
access-list 101 permit ip 10.3.5.0 0.0.0.255 10.4.6.0 0.0.0.255
access-list 101 permit ip 10.4.6.0 0.0.0.255 10.3.5.0 0.0.0.255
!
line con 0
 transport input none
line aux 0
line vty 0 4
 login
!

Router#