Implement Dynamic NAT on Cisco ASA using the CLI
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Dynamic NAT involves having a pool of global addresses and only mapping those global addresses to inside devices when those inside devices have and need to go out to the Internet.
Dynamic NAT –
In this type of NAT, multiple private IP address are mapped to a pool of public IP address . It is used when we know the number of fixed users who wants to access the Internet at a given point of time.
Example: If we have 4 public IP address in a pool then at a time, only 4 users private IP address gets translated into public address.
The private IP who have a request for the translation first will get translated first (like First Come First Serve).If all the IP addresses in the pool are busy and a request for translation is recieved then the packets will be dropped.