How is RFC 1918 addressing used in a network?

The correct answer is C. They are used with NAT to preserve public IPv4 addresses.. This document describes address allocation for private internets. The allocation permits full network layer connectivity among all hosts inside an enterprise as well as among all public hosts of different enterprises. The cost of using private internet address space is the potent

Submitted by obi.ng· Mar 5, 2026

Question

Options

AThey are used to access the Internet from the internal network without conversion.
BThey are used in place of public addresses for Increased security.
CThey are used with NAT to preserve public IPv4 addresses.
DThey are used by Internet Service Providers to route over the Internet.

How the community answered

(23 responses)

B
4% (1)
C
91% (21)
D
4% (1)

Explanation

This document describes address allocation for private internets. The allocation permits full network layer connectivity among all hosts inside an enterprise as well as among all public hosts of different enterprises. The cost of using private internet address space is the potentially costly effort to renumber hosts and networks between public and private. https://datatracker.ietf.org/doc/html/rfc1918

Topics

#RFC 1918#Private IP addresses#NAT#IPv4 addressing

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