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Network address translation

nounverified· unreviewed·updated Aug 30, 2026

A routing technology used by many firewalls to hide internal system addresses from an external network through use of an addressing schema.

polysemousMWENISTIR 7298: Glossary of Key Information Security Terms, Revision 2

Senses

SANS Glossary of Security Terms

Network Address Translation. It is used to share one or a small number of publicly routable IP addresses among a larger number of hosts. The hosts are assigned private IP addresses, which are then "translated" into one of the publicly routed IP addresses. Typically home or small business networks use NAT to share a single DLS or Cable modem IP address. However, in some cases NAT is used for servers as an additional layer of protection.

SANS Glossary of Security Termssense 2 pending review

The translation of an Internet Protocol address used within one network to a different IP address known within another network. One network is designated the inside network and the other is the outside.

ISACA Cybersecurity Glossary

A methodology of modifying network address information in IP datagram packet headers while they are in transit across a traffic routing device for the purpose of remapping one IP address space into another

Classifications

Entity Type

Network0%rule-basedmulti_axis_classifier_low_confidence.v1
?unassignedlast reviewed

Sensitivity

85%llm-generatedllm:claude-haiku-4-5
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Information Class

90%llm-generatedllm:claude-haiku-4-5
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Variants

acronym
NAT
plural
Network address translations
possessive
Network address translation's
pluralpossessive
Network address translations'