CompTIA Network+ Exam Review

Category - Networking

Which NAT feature utilizes different ports to map multiple IP addresses to a single globally registered IP address?
  1. NAT Overloading
  2. Static NAT
  3. Port loading
  4. Dynamic NAT
Explanation
Answer - A - The NAT overloading feature maps multiple IP addresses to a single globally registered address.

Key Takeaway: If you only have one public IP address on the NAT device and need to use that for all private addresses on the LAN, then you will need to overload the public address with multiple private addresses. NAT overloading is used when each of the private IP addresses is translated to the one public IP address, essentially overloading the public address.
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