NATproblem

Question:

I've a small problem with NAT.WS-C3750X-48T-L  I have a Cisco1861 and that's connected to my ISP's modem via FE0/0. I can ping my intern network without any problem but the NAT isn't working so I can't connect to the internet.

Can somebody check what I've did wrong? Hereby the config:

Many thanks for the help!

ip dhcp excluded-address 192.168.2.1
ip dhcp excluded-address 192.168.3.1
ip dhcp excluded-address 192.168.2.255
ip dhcp excluded-address 192.168.3.255
ip dhcp excluded-address 192.168.2.10
!
ip dhcp pool INTERN
   network 192.168.2.0 255.255.255.0
   default-router 192.168.2.1 255.255.255.0
   dns-server 8.8.8.8
!
ip dhcp pool GUEST
   network 192.168.3.0 255.255.255.0
   default-router 192.168.3.1 255.255.255.0
   dns-server 8.8.8.8
!
!
no ipv6 cef
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
voice-card 0
!
!
!
!
!
license udi pid C1861W-SRST-C-F/K9 sn FGL153422S3
!
!
!
!
!
!
!
interface FastEthernet0/0
ip address dhcp
ip nat outside
ip nat enable
ip virtual-reassembly
duplex auto
speed auto
!
interface Integrated-Service-Engine0/0
no ip address
shutdown
!
interface FastEthernet0/1/0
!
interface FastEthernet0/1/1
switchport mode trunk
!
interface FastEthernet0/1/2
!
interface FastEthernet0/1/3
switchport access vlan 2
spanning-tree portfast
!
interface FastEthernet0/1/4
!
interface FastEthernet0/1/5
!
interface FastEthernet0/1/6
!
interface FastEthernet0/1/7
!
interface FastEthernet0/1/8
!
interface Dot11Radio0/5/0
no ip address
shutdown
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
station-role root
!
interface Vlan1
ip address 192.168.1.1 255.255.255.0
!
interface Vlan2
ip address 192.168.2.1 255.255.255.0
ip nat inside
ip nat enable
ip virtual-reassembly
!
interface Vlan3
ip address 192.168.3.1 255.255.255.0
ip nat inside
ip nat enable
ip virtual-reassembly
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list 1 interface FastEthernet0/0 overload
ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
!
access-list 1 permit 192.168.0.0 0.0.255.255
!

Answer:

you should take this off:
ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
as your f0/0 interface gets an IP address by DHCP it should also get a default gateway, verify this after deleting the default static route you entered  with sh ip route static WS-C3750X-48T-S Price command.

For more info, please refer to http://lilirouter.tblog.com/