Source:The National Association for Poetry Therapy
NAPT Network Address Port Translation
Also Called Port Address Translation
192.168.1.10 3333 Connects To 192.18.99.175 80
Let Actual Internet Address Be 68.160.106.71
Router Can Map 192.168.1.10 3333 To 68.160.106.71 1029
When A Packet Comes Back It Can Reverse The Translation
- NAT Doesn't Translate The Port Numbers, Just The Address.
- NAT Usually Means NAT/PAT Or NAPT
- If A Packet Arrives For A Port Not In The Table It Can Be Discarded.
- This Makes NAPT Into A Security Feature.
- Vendors Like Linksys Call This A Firewall.
