Livebox + Router et Vlan : ping LB impossible

Bonjour,

J’ai réussi à configurer mon switch 2960s et mon routeur 2901 pour qu’ils fonctionnent avec des vlans.

Mes périphériques se pingent très bien en intervlan, mon soucis vient du fait que je n’arrive pas à sortir sur internet.

Ping 192.168.1.1 impossible, le point le plus haut que je ping et mon interface GE 0/0.1 soit le vlan1 juste avant la sortie vers la box.

Voila ma conf
version 15.7
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$BChv$x/QL8i6nA4ca9zwO9qUCe.
!
aaa new-model
!
!
aaa authentication login default local
aaa authorization exec default local
!
aaa session-id common
!
ip dhcp pool vlan10
network 192.168.10.0 255.255.255.0
default-router 192.168.10.251
dns-server 8.8.8.8
!
ip dhcp pool vlan20

network 192.168.20.0 255.255.255.0
default-router 192.168.20.251
dns-server 8.8.8.8
!
ip dhcp pool vlan30
network 192.168.30.0 255.255.255.0
default-router 192.168.30.251
dns-server 8.8.8.8
!
ip dhcp pool vlan40
network 192.168.40.0 255.255.255.0
default-router 192.168.40.251
dns-server 8.8.8.8
!
ip domain name ataworld.fr
ip name-server 8.8.8.8
ip name-server 8.8.4.4
ip cef
no ipv6 cef
multilink bundle-name authenticated
!
license udi pid CISCO2901/K9 sn FCZ1749C153
!
username one privilege 15 password 0
username atalec privilege 15 password 0
!
redundancy
!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
ip address 192.168.1.254 255.255.255.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
!
interface GigabitEthernet0/0.1
encapsulation dot1Q 1 native
ip address 192.168.4.251 255.255.255.0
ip nat outside
ip virtual-reassembly in
!
interface GigabitEthernet0/1
ip address 192.168.2.254 255.255.255.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
!
interface GigabitEthernet0/1.1
encapsulation dot1Q 1 native
ip address 192.168.3.251 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface GigabitEthernet0/1.10
encapsulation dot1Q 10
ip address 192.168.10.251 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface GigabitEthernet0/1.20
encapsulation dot1Q 20
ip address 192.168.20.251 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface GigabitEthernet0/1.30
encapsulation dot1Q 30
ip address 192.168.30.251 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface GigabitEthernet0/1.40
encapsulation dot1Q 40
ip address 192.168.40.251 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
ip default-gateway 192.168.1.1
ip forward-protocol nd
!
ip http server
ip http authentication local
no ip http secure-server
!
ip nat inside source list 1 interface GigabitEthernet0/0 overload
ip route 0.0.0.0 0.0.0.0 192.168.1.1
!
control-plane
!
line con 0
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
stopbits 1
line vty 0 4
transport input none
!
scheduler allocate 20000 1000
!
end

Merci d’avance