KotoVPN

Glossary

NAT

Also called: Network address translation

What is NAT?

NAT is sharing one public address between many devices, which is how commercial VPN servers put hundreds of users behind a single IP. Shared NAT is a privacy feature in itself: traffic from one address cannot be attributed to one user without records that map sessions to users.

Why it matters

Shared NAT is a privacy feature in itself: traffic from one address cannot be attributed to one user without records that map sessions to users.

What most explanations leave out

It is also why a dedicated IP is a trade-off rather than an upgrade. A dedicated address removes the crowd you were hiding in, in exchange for not being blocked alongside everyone else who shares it.

Related terms

Dedicated IP

A VPN address assigned to you alone rather than shared with other subscribers.

Port forwarding

Allowing inbound connections to reach your device through the VPN, rather than only outbound connections.

Referenced from

Questions

What is NAT?
Sharing one public address between many devices, which is how commercial VPN servers put hundreds of users behind a single IP.
Why does NAT matter when choosing a VPN?
Shared NAT is a privacy feature in itself: traffic from one address cannot be attributed to one user without records that map sessions to users.
What do most explanations of NAT leave out?
It is also why a dedicated IP is a trade-off rather than an upgrade. A dedicated address removes the crowd you were hiding in, in exchange for not being blocked alongside everyone else who shares it.

Terms are defined here because they appear in our scoring rubric or in provider reviews, not to fill a glossary.