针对vlan做双nat这样写行不

我的123456

ip access-list extended nat
deny   ip 172.16.6.0 0.0.0.255 any
permit ip 172.16.0 0.0.255.255 any
ip nat inside source list nat interface GigabitEthernet0/0 overload

ip access-list extended nats
permit ip 172.16.6.0 0.0.0.255 any
ip nat pool mishi 202.107.203.120 202.107.203.120 netmask 255.255.255.240
ip nat inside source list nats pool mishi overload