*** NAT Dinâmico (PAT)
enable
configure terminal 
ip access-list standard 1
permit 192.168.0.0 0.0.0.255
exit

ip nat inside source list 1 interface gigabitEthernet 0/0/1 overload

interface gigabitEthernet 0/0/1 
ip nat outside 

interface gigabitEthernet 0/0/0
ip nat inside

*** NAT Estático

ip nat inside source static 192.168.100.1 15.0.0.11
p nat inside source static 192.168.100.12 15.0.0.12
ip nat inside source static 192.168.100.13 15.0.0.13
ip nat inside source static 192.168.100.14 15.0.0.14

interface gigabitEthernet 0/0/0
ip nat outside

interface gigabitEthernet 0/0/1
ip nat inside

do show ip nat trans
do show ip nat stat