September 2003
Intermediate to advanced
1264 pages
35h 56m
English
Content preview from Internet Information Services (IIS) 6 Resource KitBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Comparing IPv4 and IPv6 Addresses
The size of an IPv6 address is 128 bits, which is four times larger than an IPv4 address. In theory, the 32-bit address space that IPv4 uses provides 4,294,967,296 possible addresses; however, previous and current allocation practices limit the number of public IPv4 addresses to a few hundred million. By contrast, the 128-bit address space that IPv6 uses provides 3.4 × 1038 possible addresses.
The size of the IPv6 address allows for subdividing the address into a hierarchical routing structure that reflects the current topology of the Internet. This structure provides great flexibility for hierarchical addressing and routing, which the IPv4-based Internet lacks.
Comparing Address Formats
IPv4 addresses are represented ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.