crypto isakmp policy 10
 encr aes 256
 authentication pre-share
 group 2
crypto isakmp key xxxxxxxx address y.y.y.y
!
!
crypto ipsec transform-set ESP-AES-256 esp-aes 256 esp-sha-hmac 

!
!
crypto map First2 10 ipsec-isakmp 
 set peer y.y.y.y
 set transform-set ESP-AES-256 
 match address 101
!
!
!
!
interface Tunnel1
 ip unnumbered Loopback1
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip route-cache flow
 keepalive 10 3
 tunnel source Loopback1
 tunnel destination 192.168.5.22
 crypto map First2
!
interface Loopback1
 ip address 192.168.5.23 255.255.255.255
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip route-cache flow
!
interface FastEthernet0/0
 ip address z.z.z.z 255.255.255.248
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no ip route-cache cef
 no ip route-cache
 duplex auto
 speed auto
 no cdp enable
 crypto map First2
!
!
ip route 0.0.0.0 0.0.0.0 u.u.u.u

access-list 101 permit ip host 192.168.5.23 host 192.168.5.22