1. Home
  2. IT
  3. Security of information systems
  4. Firewalls. The pocketknife for enforcing computer security

  5. Other essential firewall functions

Article | REF: TE7550 V2

Firewalls. The pocketknife for enforcing computer security

Author: Maryline LAURENT

Publication date: October 10, 2017, Review date: January 3, 2024

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

Français

11. Other essential firewall functions

Firewalls can host many other functions, the most common of which are presented in this section.

11.1 Address translation (NAT)

NAT address translation enables terminals on the private network to interact with terminals on the public network, in which case the private network is privately addressed. NAT enables IP addresses to be translated in both directions: private addresses into public addresses, and public addresses into private addresses. NAT makes it possible to artificially increase the number of IP addresses available on the public network, thus addressing the delicate problem of the shortage of IPv4 public addresses. Private addresses that only make sense within a private network can be reassigned from one private network to another, thus increasing...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Security of information systems

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Other essential firewall functions
Outline