JUNOS® FOR DUMMIES®

Chapter 5. Locking-in on JUNOS Software Security and High Availability

In this chapter, we provide short descriptions of various security functions for those new to the topic and also introduce a few of the ways that JUNOS software can help you secure your network, as well as provide high network availability to users. (Chapter 3 discusses switch security solutions for Network Access Control).

Note

Security is one of those feature areas where product families running on JUNOS software can vary most in what each provides and how they work. For example, you probably look for a broad spectrum of integrated security functionality in your smaller routing devices, but less in your larger platforms, where most organizations continue to use specialized devices for performance and other reasons. So if you're implementing security in JUNOS software, you want to look at documentation written specifically for that product.

Securing Your Network

The protocols for switching and routing assume a single-purpose mission: Take any packet entering the network and pass it on as quickly as possible for fast delivery to whatever destination the packet requests.

Of course, in reality, just like your mailbox at home, you don't always want all the traffic sent to your network. Moreover, unlike your mailbox, unwanted traffic is not only a minor annoyance, but it can be a major threat to your organization as well, with long term impact to customer relationships and its financial health. Security helps you restrict ...