Juniper Networks JNCIA-Junos (JN0-102): Routing Policy and Firewall Filters

This is the seventh and final course a complete series covering the Juniper Networks JNCIA-Junos certification track. In this course you'll learn about Routing Policy and Firewall Filters.
Course info
Level
Beginner
Updated
Jan 16, 2018
Duration
1h 31m
Table of contents
Description
Course info
Level
Beginner
Updated
Jan 16, 2018
Duration
1h 31m
Description

If you are someone interested in gaining Juniper Networks JNCIA-Junos certification or simply want to know more about Routing Policy and Firewall filters this course, Juniper Networks JNCIA-Junos (JN0-102): Routing Policy and Firewall Filters is for you. First, you will take a look at the concept of routing policies and examine the default Junos routing policies for RIP, ISIS, OSPF and BGP dynamic routing protocols. Next, you will move onto how policies can control the flow of routing information into and out of routing tables. Then, you will explore firewall filters and look at how they work and how they are structured, and what the effects are when applied. Additionally, you will examine a Junos feature called Unicast Reverse-Path-Forwarding (RPF) and how it is used to validate the source of packets received on interfaces. Finally, you will wrap up the whole series of courses and provide some links for JNCIA-Junos JN0-102 exam preparation. By the end of this course, you will know more about Routing Policy and Firewall Filters and be better prepared for gaining the Juniper Networks JNCIA-Junos certification.

About the author
About the author

Rich Bibby is a Network Engineer with extensive experience in designing, deploying and supporting enterprise networks of varying size and scale. Areas of expertise include Campus LAN, WAN, Data Center, VPN, and Remote Access solutions from vendors including Juniper, Cisco, Arista, Checkpoint, and Pulse Secure.

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More courses by Rich Bibby
Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
Hi everyone. My name is Rich Bibby, and welcome to my course, Juniper Networks JNCIA-Junos: Routing Policy and Firewall Filters. I'm a network engineer based in the UK. This is the seventh and final course in a complete series covering the Juniper Networks JNCIA-Junos certification track, providing the viewer with the skills and knowledge required to pass the JN0-102 exam. In this course, you'll learn all about routing policy and firewall filters for Juniper Network devices. Some of the major topics that we will cover include an in-depth look at the concept of routing policies and the default Junos routing policies for the different routing protocols, how routing policies can control the flow of information into and out of routing tables, firewall filters, how they work and how they are structured, and what the effects are when applied to the configuration. We'll examine a Junos feature called Unicast Reverse-Path-Forwarding checks, and how they're used to validate the source of packets received on interfaces. And finally, we'll have a brief recap of what we've covered in the whole series of courses. I'll look at some of the extra resources that you can use to prepare for the exam. When you've finished with this course, you'll have taken another major step towards gaining the JNCIA-Junos certification, one of the most sought-after in the networking industry. I hope you'll join me on this journey to learn more about routing policy and firewall in Junos with the Juniper Networks JNCIA-Junos: Routing Policy and Firewall Filters course, at Pluralsight.

Default Routing Policies
Hello, and welcome to the first module of the Juniper Networks JNCIA-Junos: Routing Policy and Firewall Filters course. Hopefully, if you're viewing this course, you will have already taken the previous courses in this series. And if so, you should have a solid understanding of the basics of IP routing on Junos devices. In this course, we're going to take a look at some additional features of the Junos OS that relate to routing and forwarding traffic, namely, routing policies and firewall filters. So let's run through what you'll learn in this module, which is all about default routing policies. Firstly, we'll talk about what we actually mean by routing policies, and look at the theory behind them in a bit of detail. Then we'll move on to looking at the default Junos routing policies for the RIP, IS-IS, OSPF, and BGP dynamic routing protocols. And lastly, we'll fire up the virtual lab again, and I'll demonstrate how a routing policy can be used with the RIP routing protocol, and this will hopefully give you an understanding of what routing policies do and how they can be applied.

Import and Export Policies
Hello, and welcome to this module of the Juniper Networks JNCIA-Junos: Routing Policy and Firewall Filters course. This module is all about routing policy definition. In the previous module, you learned about the default routing policies in Junos, and then in our lab we stepped through configuring a quick example of an export policy to advertise RIP routes. In this module, we'll take routing policy a step further and look in detail at how routing policies are defined. So let's run through what you'll learn in this module. Firstly, we'll talk about the basic structure of a routing policy using the example of the previous module to see what the basic building blocks of a policy look like. Then we'll take a look at how policies are evaluated by the Junos OS and what selection criteria can be used to match routes against, and then we'll talk about the common actions that a policy can apply when routes match policy statements. And finally, we'll put all of this together in our lab to define and configure a routing policy of our own. This will give you some hands-on experience of configuring routing policy, which will really help to solidify the concepts you're learning in this course.

Policy Structure and Terms, Match Criteria, and Actions
Hello, and welcome to this module of the Juniper Networks JNCIA-Junos: Routing Policy and Firewall Filters course. This short module is all about routing a policy application. In the previous module, you learned about how routing policies are defined, and to be honest, that was the tough part, applying the policies is the easy bit. So let's run through what you'll learn in this module. Firstly, we'll have a quick recap of the different levels of configuration hierarchy that you can apply routing policies at, because if you remember from module 1 of this course, it does vary depending on the protocol. Then we'll take a look at how Junos applies and processes routing policies, and cover some of the things you need to be aware of when working with routing policies. And finally, we'll go back to our lab and actually apply the routing policies that we defined in the previous module.

Firewall Filter Concepts, Match Criteria, and Actions
Hello, and welcome to this module of the Juniper Networks JNCIA-Junos: Routing Policy and Firewall Filters course. This module is all about firewall filters. So let's run through what you'll learn in this module. Firstly, we'll take a high-level look at what Junos firewall filters are and how they can be deployed in your network. Then we'll look at how firewall filters are constructed in terms of the configuration. We'll look at match criteria, match conditions, and actions. You'll find that this is very similar to the way that routing policies are configured. And then we'll take a look at how and where to apply your firewall filters once you've written them. And as with routing policies, a filter will not do anything until it's been applied. Then you'll learn about how firewall filters can be used in conjunction with polices to rate limit traffic as it passes through an interface. We'll then take a look at a few commands that you have at your disposal to monitor firewall activity and verify that your filters are working as expected. And finally, we'll put all the theory into practice once more and configure some firewall filters in our lab.

Unicast Reverse Path-forwarding (RPF) Checks
Hello, and welcome to this module of the Juniper Networks JNCIA-Junos: Routing Policy and Firewall Filters course. This module is all about an automated anti-spoofing feature called Unicast Reverse-Path-Forwarding Checks. So let's run through what you'll learn in this module. Firstly, we'll discuss what Unicast RPF checks are, how they work, and the role that they can play as part of the overall security of your network. Then we'll look at some extra features of RPF that need to be considered, namely strict mode versus loose mode, feasible paths, and fail filters. And finally, we'll put the theory into practice once more and configure RPF checks on our lab router.