Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning OpenStack Networking

You're reading from   Learning OpenStack Networking Build a solid foundation in virtual networking technologies for OpenStack-based clouds

Arrow left icon
Product type Paperback
Published in Aug 2018
Publisher Packt
ISBN-13 9781788392495
Length 462 pages
Edition 3rd Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
James Denton James Denton
Author Profile Icon James Denton
James Denton
Arrow right icon
View More author details
Toc

Table of Contents (16) Chapters Close

Preface 1. Introduction to OpenStack Networking FREE CHAPTER 2. Installing OpenStack 3. Installing Neutron 4. Virtual Network Infrastructure Using Linux Bridges 5. Building a Virtual Switching Infrastructure Using Open vSwitch 6. Building Networks with Neutron 7. Attaching Instances to Networks 8. Managing Security Groups 9. Role-Based Access Control 10. Creating Standalone Routers with Neutron 11. Router Redundancy Using VRRP 12. Distributed Virtual Routers 13. Load Balancing Traffic to Instances 14. Advanced Networking Topics 15. Other Books You May Enjoy

Network address translation

Network address translation, or NAT, is a networking concept that was developed in the early 1990s in response to the rapid depletion of IP addresses throughout the world. Prior to NAT, every host connected to the internet had a unique IP address.

Standalone routers support two types of NAT:

  • one-to-one
  • many-to-one

A one-to-one NAT is a method in which one IP address is directly mapped to another. Commonly referred to as a static NAT, a one-to-one NAT is often used to map a unique public address to a privately addressed host. Floating IPs utilize one-to-one NAT concepts.

A many-to-one NAT is a method in which multiple addresses are mapped to a single address. A many-to-one NAT employs the use of port address translation, or PAT. Neutron uses PAT to provide external access to instances behind the router when floating IPs are not assigned.

For more information...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime