NAT not working in cisco packet tracer Cisco Router Version: 16.7(3r) Cisco Packet Tracer:8.0 x64 Router(config)#interface dialer 1 Router(config-if)#ip nat? % Unrecognized command Router(config-if)#ip nat ? % Unrecognized command Router(config)#interface g0/0/0 Router(config-if)#ip nat Router(config-if)#ip nat ? inside Inside interface for address translation outside Outside interface for address translation Router(config-if)#ip nat NAT's not working in cisco packet tracer.I created dialer interface. and I can't define nat outside command to this interface. How do I solve this problem?

You can’t. Packet Tracer is just a learning tool with very basic functionalities, and not everything a real device can do was built into Packet Tracer. You can try using GNS3 or Cisco VIRL instead, but your best bet is to just get your hands on a real device (maybe from eBay or Amazon) to use as a lab.