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Home / Glossary / DNAT
Glossary · Networking

DNAT

Destination Network Address Translation

In plain language

A firewall rule that redirects traffic arriving at your public address to a specific device inside the office.

The metaphor

Like a front desk that receives every delivery and walks it to the right office.

Going deeper

How it works

  • Traffic arrives at the public address and port.
  • The rule sends it to an inside device.
  • Used for cameras and servers.
  • Each forward opens a door that attackers can find.

What can go wrong (example scenario)

An office forwarded a port to a camera recorder with a default password. Attackers found it within days and used it to view the feeds.

How WILDCARD handles it

Network covers the managed firewall where these rules are set and reviewed.

In practice
  • A server is reachable from the internet.
  • A camera recorder is forwarded.
  • A review removes forwards nobody needs.

A question owners ask

Is it safe?

Each forward is a door. Prefer a VPN for access.

Where WILDCARD handles this
Network
  • Firewall managed and monitored
  • Switches kept current
  • On-prem Active Directory auth
Start with Network
Related terms
ACLAccess Control ListAHAuthentication HeaderAPAccess PointARPAddress Resolution ProtocolBPDUBridge Protocol Data UnitCCMPCounter Mode/CBC-MAC ProtocolCCTVClosed-circuit TelevisionCHAPChallenge Handshake Authentication Protocol

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