Configuration d'internet sur un 3825

Bonjour,

Je n'arrive pas a avoir acces a l'internet malgré que j'aie configuré soigneusement configuré mon routeur.



R1#sh run
Building configuration...

Current configuration : 1862 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1erwr$ajMJ$sdfdersdertWwomZrewrP/xnfWwhBjWrwr7MY0

!
clock timezone EST -5
no network-clock-participate wic 1
no aaa new-model
ip subnet-zero
ip cef
!
!
!
!
ip domain name pcsol.com
ip name-server 200.25.13.6
no ftp-server write-enable
!
!
!
controller E1 0/1/0
!
controller E1 0/1/1
!
!
interface GigabitEthernet0/0
description Connection to the Internet Service Provider
ip address 200.25.13.61 255.255.255.0
ip nat outside
duplex auto
speed auto
media-type rj45
no cdp enable
!
interface GigabitEthernet0/1
description Connection to the Local Area Connection
ip address 192.168.0.1 255.255.255.0
ip access-group 28 in
ip nat inside
duplex auto
speed auto
media-type rj45
!
ip classless
ip route 0.0.0.0 0.0.0.0 200.25.13.61
!
no ip http server
ip nat inside source list 28 interface GigabitEthernet0/1 overload
!
access-list 28 permit 192.168.0.0 0.0.0.255
!
control-plane
!
banner exec ^C
YOU HAVE SUCCESSFULLY LOGIN IN.^C
banner login ^C
ANY INTRUDERS FOUND ON THE SYSTEM WILL BE TAKEN TO THE COURT!!! ^C
banner motd ^C

*****************************************************************************
Please provide your password!!!!!
*****************************************************************************

!
line con 0
exec-timeout 30 0

logging synchronous
login
stopbits 1
line aux 0
exec-timeout 0 5

logging synchronous

stopbits 1
line vty 0 4

logging synchronous

!
scheduler allocate 20000 1000
end