May 2018
Intermediate to advanced
326 pages
8h 32m
English
Content preview from Practical Network Scanning
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IPsec Layer-3 encryption
We have already discussed IPsec in the previous section. Here, we will discuss how IPsec complements WAN technology. Layer-3 encryption is well-suited to environments where you have low-bandwidth connections and do not have the devices to support encryption at Layer-2 or Layer-1 levels. Organizations are running WAN technology in a different way, for example, with ATMs, Frame-Relay, Metro-Ethernet and MPLS-based solutions. The ultimate security question is: Who do you trust with your business-critical data? If your answer is the service provider, then you probably do not need to encrypt your data. However, if your answer is nobody, then you must transmit data to an encrypted service provider.
Let's look at the MPLS ...
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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.