September 2003
Intermediate to advanced
432 pages
8h 53m
English
Content preview from Solaris™ 9 Network Administrator Exam Cram™ 2 (Exam CX-310-044)Become 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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Classless InterDomain Routing (CIDR)
Classless InterDomain Routing, or CIDR, is a way of grouping networks together for routing purposes across the Internet between domains. With the IPv4 address space running out, CIDR makes much more effective use of the available addresses. CIDR is also known as supernetting, where a number of network addresses are treated as a single address (as opposed to subnetting, where a single network address is divided into smaller networks).
CIDR works by using classless addresses, unlike IPv4, which uses classful addressing. For routing purposes, a single classless address can represent an aggregation of networks (in the same way that the telephone system uses area codes). A CIDR network address looks like this: ...
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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.