Cisco simulator PacketTracer delete nat address pool steps

Cisco simulator PacketTracer delete nat address pool steps

Problems encountered:

(config)# no ip nat pool pool_name

Error:

%Pool pool_name in use, cannot destroy

The correct steps: 

#clear ip nat translation *

(config)#no ip nat inside source list 1 pool pool_name

(config)# no ip nat pool pool_name

So it can successfully deleted NAT configuration.