Cisco 1921 Router, NAT ve Static Routing

Merhaba,

Sorun İlyas bey'in yardımları ile çözülmüştür. İlyas bey çok teşekkür ederim. 

Belki diğer kullanıcılara da lazım olur. 

ip dhcp pool steelnet
import all
network 192.168.142.0 255.255.255.0
default-router 192.168.142.1
dns-server 8.8.8.8
!
!
!

!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
description PrimaryWANDesc_
ip address 195.xxx.xxx.238 255.255.255.248
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
!
interface GigabitEthernet0/1
ip address 192.168.142.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
!
no ip forward-protocol nd
!
ip http server
ip http secure-server
!
ip nat inside source list 11 interface GigabitEthernet0/0 overload
ip route 0.0.0.0 0.0.0.0 195.xxx.xxx.233 name Internet
!
!
!
access-list 11 remark NAT
access-list 11 permit 192.168.142.0 0.0.0.255