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Securing Cisco Routers

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Learn the different ways you can provide additional security to your Cisco network by setting up encrypted passwords, turning off all unwanted services, configuring different access levels, and using different access lists to filter all unwanted traffic out of your network and mitigate spoofing and DoS threats.
This chapter is from the book

Terms you'll need to understand:

  • Types of threats

  • Threat mitigation

  • Console access

  • VTY access

  • Authentication methods

  • Types of services

  • Access control lists (ACLs)

  • Threat mitigation using ACLs

Techniques you'll need to master:

  • Securing console access

  • Securing VTY access

  • Securing passwords

  • Securing Simple Network Management Protocol (SNMP)

  • Disabling router services and interfaces

  • Following rules for creating ACLs

  • Configuring ACLs for threat mitigation

Introduction

In this chapter, you will learn about all the different ways you can secure a Cisco router from hackers and out-of-band threats. We discuss the different services you need to know when configuring a router.

We also delve into configuring access lists and the different access lists that are available to you as a network engineer that you can use to protect your network backbone.

Threat mitigation is an important aspect of network security, and as a security expert, it is your prime objective to ensure that you protect your network and mitigate threats that arise.

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