Router#sh ip int brief
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            xxx.xxx.xx.xxx  YES DHCP   up                    up  
FastEthernet0/1            10.0.1.1        YES NVRAM  up                    up  
Async0/0/0                 unassigned      YES NVRAM  down                  down
Serial0/1/0                unassigned      YES NVRAM  administratively down down
NVI0                       unassigned      YES unset  up                    up  
Router#sh run
Building configuration...

Current configuration : 1179 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
ip cef
!
!
!
!
ip name-server 8.8.8.8
ip name-server 8.8.4.4
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
 ip address dhcp
 ip nat outside
 ip virtual-reassembly
 no ip route-cache cef
 no ip route-cache
 duplex auto
 speed auto
 no cdp enable
!
interface FastEthernet0/1
 ip address 10.0.1.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly
 no ip route-cache cef
 no ip route-cache
 duplex auto
 speed auto
 no cdp enable
!
interface Serial0/1/0
 no ip address
 shutdown
 no fair-queue
!
interface Async0/0/0
 no ip address
!
ip classless
ip route 0.0.0.0 0.0.0.0 xxx.xxx.xx.xxx (ISP Default Gateway)
!
ip http server
no ip http secure-server
ip nat inside source list 102 interface FastEthernet0/0 overload
!
access-list 102 permit ip 10.0.1.0 0.0.0.255 any
!
!
control-plane
!
!
line con 0
line aux 0
line 0/0/0
 stopbits 1
 speed 115200
 flowcontrol hardware
line vty 0 4
 login
!
end

Router#sh ip nat trans
Pro Inside global      Inside local       Outside local      Outside global
udp xxx.xxx.xx.xxx:1718 10.0.1.100:1718   10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:2298 10.0.1.100:2298   10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:3596 10.0.1.100:3596   10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:4132 10.0.1.100:4132   10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:7017 10.0.1.100:7017   10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:7136 10.0.1.100:7136   10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:10280 10.0.1.100:10280 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:14776 10.0.1.100:14776 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:15141 10.0.1.100:15141 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:16839 10.0.1.100:16839 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:21866 10.0.1.100:21866 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:22773 10.0.1.100:22773 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:24383 10.0.1.100:24383 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:33744 10.0.1.100:33744 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:35566 10.0.1.100:35566 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:40698 10.0.1.100:40698 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:41517 10.0.1.100:41517 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:43442 10.0.1.100:43442 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:47279 10.0.1.100:47279 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:52181 10.0.1.100:52181 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:54270 10.0.1.100:54270 10.0.0.1:53        10.0.0.1:53
udp xxx.xxx.xx.xxx:58581 10.0.1.100:58581 10.0.0.1:53        10.0.0.1:53
Router#
Router#