Please Whitelist This Site?
I know everyone hates ads. But please understand that I am providing premium content for free that takes hundreds of hours of time to research and write. I don't want to go to a pay-only model like some sites, but when more and more people block ads, I end up working for free. And I have a family to support, just like you. :)
If you like The TCP/IP Guide, please consider the download version. It's priced very economically and you can read all of it in a convenient format without ads.
If you want to use this site for free, I'd be grateful if you could add the site to the whitelist for Adblock. To do so, just open the Adblock menu and select "Disable on tcpipguide.com". Or go to the Tools menu and select "Adblock Plus Preferences...". Then click "Add Filter..." at the bottom, and add this string: "@@||tcpipguide.com^$document". Then just click OK.
Thanks for your understanding!
Sincerely, Charles Kozierok
Author and Publisher, The TCP/IP Guide
NOTE: Using software to mass-download the site degrades the server and is prohibited.
If you want to read The TCP/IP Guide offline, please consider licensing it. Thank you.
IPv6 Addressing Overview: Addressing Model and Address Types
(Page 1 of 2)
In the IPv6
overview section I explained that IPv6
represents a significant update to the Internet Protocol, but that its
modifications and additions are made without changing the core nature
of how IP works. Addressing is the place where most of the differences
between IPv4 and IPv6 are seen, but the changes are mostly in how addresses
are implemented and used. The overall model used for IP addressing in
IPv6 is pretty much the same as it was in IPv4; some aspects have not
changed at all, while others have changed only slightly.
Unchanged Aspects of Addressing in IPv6
Some of the general characteristics
of the IPv6 addressing model that are basically the same as in IPv4:
- Core Functions of Addressing: The two
main functions of addressing are still network
interface identification and routing.
Routing is facilitated through the structure of addresses on the internetwork.
- Network Layer Addressing: IPv6 addresses
are still the ones associated with the network layer in TCP/IP networks,
and are distinct from data link layer (also sometimes called physical)
- Number of IP Addresses Per Device: Addresses
are still assigned to network interfaces,
so a regular host like a PC will usually have one (unicast) address,
and routers will have more than one, for each of the physical networks
to which it connects.
- Address Interpretation and Prefix Representation:
IPv6 addresses are like classless IPv4 addresses in that they are interpreted
as having a network identifier part and a host identifier part, but
that the delineation is not encoded into the address itself. A prefix
length number, using CIDR-like
notation, is used to indicate the length
of the network ID (prefix length).
- Private and Public Addresses: Both types
of addresses exist in IPv6, though they are defined and used somewhat
|If you find The TCP/IP Guide useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider purchasing a download license of The TCP/IP Guide. Thanks for your support!|
Table Of Contents - Contact Us
The TCP/IP Guide (http://www.TCPIPGuide.com)
Version 3.0 - Version Date: September 20, 2005
© Copyright 2001-2005 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.