Здравствуйте! Никак не хочет работать nat в Cisco 851. Вот полный конфиг.

Current configuration : 1546 bytes
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname Taganka
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$sP37xdfhxfhfghqKfhffghfRZ1
enable password 7 153445353557F2345B3A
!
aaa new-model
!
!
!
!
aaa session-id common
!
!
dot11 syslog
no ip routing
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.1.1
!
ip dhcp pool Tagankanet
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 172.17.6.7
!
!
no ip cef
ip domain name cisco.local
!
!
!
username lifenet privilege 15 password 7 080F4A5B0F2017111E5954
!
!
archive
log config
hidekeys
!
!
!
!
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface FastEthernet4
ip address dhcp
ip nat outside
ip virtual-reassembly
no ip route-cache
duplex auto
speed auto
!
interface Vlan1
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly
no ip route-cache
!
ip default-gateway 172.x.x.x
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 FastEthernet4
!
no ip http server
no ip http secure-server
ip nat inside source list NatTag interface FastEthernet4 overload
!
ip access-list extended NatTag
permit ip host 192.168.1.0 any
!
snmp-server community public RO
!
control-plane
!
!
line con 0
no modem enable
line aux 0
line vty 0 4
exec-timeout 15 0
privilege level 15
password 7 1478819435E051238
transport input ssh
!
scheduler max-task-time 5000
end

Где может быть косяк? Заранее спасибо!