Enable NAT Inside and Outside Interfaces

Enable NAT inside interface:

System(rw)->configure
System(rw-config)->interface vlan 10
System(rw-config-intf-vlan.0.10)->ip nat inside
System(rw-config-intf-vlan.0.10)->exit
System(rw-config)->interface vlan 20
System(rw-config-intf-vlan.0.20)->ip nat inside
System(rw-config-intf-vlan.0.20)->exit
System(rw-config)->

Enable NAT outside interface:

System(rw-config)->interface vlan 100
System(rw-config-intf-vlan.0.100)->ip nat outside
System(rw-config-intf-vlan.0.100)->exit
System(rw-config)->interface vlan 200
System(rw-config-intf-vlan.0.200)->ip nat outside
System(rw-config-intf-vlan.0.200)->exit
System(rw-config)->