May 2009
Intermediate to advanced
882 pages
22h 55m
English
Content preview from Cisco® Network Professional's: Advanced Internetworking Guide
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12.1. Introduction to Virtual Private Networks
Virtual private network (VPN) is a term that is used frequently, but has different meanings, depending on who you talk to and the context of your discussion. Let's define what I mean here when I discuss VPNs. When I say VPN, I am talking about a method for connecting two disparate networks, generally over the Internet. Also, for the purposes of discussion, I also assume that the sessions will be encrypted sessions. IPsec is the standard that you will be using in this chapter. IPsec stands for IP Security and is based on a series of requests for comments (RFCs) that were first issued during the mid-to-late 1990s. The information gathered has been continually updated and is very much in use today. ...
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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.
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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.