[Network] VLAN NAT 설정
Router(config)# ip nat pool NAT_POOL 20.0.0.1 20.0.0.1 netmask 255.0.0.0
Router(config)# access-list 10 permit 192.168.10.0 0.0.0.255
Router(config)# access-list 20 permit 192.168.20.0 0.0.0.255
Router(config)# access-list 30 permit 192.168.30.0 0.0.0.255
Router(config)# interface FastEthernet0/0
Router(config-if)# ip nat inside
Router(config)# interface FastEthernet0/1
Router(config-if)# ip nat outside
Router(config)# interface FastEthernet0/0.10
Router(config-subif)# encapsulation dot1Q 10
Router(config-subif)# ip nat inside
Router(config-subif)# exit
Router(config)# interface FastEthernet0/0.20
Router(config-subif)# encapsulation dot1Q 20
Router(config-subif)# ip nat inside
Router(config-subif)# exit
Router(config)# interface FastEthernet0/0.30
Router(config-subif)# encapsulation dot1Q 30
Router(config-subif)# ip nat inside
Router(config-subif)# exit
Router(config)# ip nat inside source list 10 pool NAT_POOL
Router(config)# ip nat inside source list 20 pool NAT_POOL
Router(config)# ip nat inside source list 30 pool NAT_POOL
스위치, 라우터 사이에는 trunk