Understanding Cisco IP Telephony Authentication and Encryption Fundamentals

This chapter covers the following topics:

  • Explaining how file manipulation, tampering with call-processing signaling, man-in-the-middle attacks, eavesdropping, and IP phone and server identity theft can compromise a Cisco CallManager system
  • Explaining how the authentication and encryption mechanisms in a Cisco CallManager system protect against security threats
  • Explaining the role of CAPF, external CAs, MIC and LSC, CTLs, and Cisco CTL client
  • Explaining the PKI enrollment process in a Cisco IP telephony environment
  • Explaining where keys and certificates are stored in a Cisco IP telephony environment
  • Describing the processes of image authentication, device authentication, file authentication, and signaling authentication
  • Describing the processes and protocols used for signaling encryption and media encryption

Cisco IP telephony systems are subject to several threats, including eavesdropping, identity spoofing, and denial of service (DoS) attacks. In Cisco CallManager Release 4.0 and later, the Cisco IP telephony solution can be secured against these threats by enabling authentication and encryption features. This chapter explains how authentication and encryption can be applied in a Cisco IP telephony environment.

Part I: Cisco CallManager Fundamentals

Introduction to Cisco Unified Communications and Cisco Unified CallManager

Cisco Unified CallManager Clustering and Deployment Options

Cisco Unified CallManager Installation and Upgrades

Part II: IPT Devices and Users

Cisco IP Phones and Other User Devices

Configuring Cisco Unified CallManager to Support IP Phones

Cisco IP Telephony Users

Cisco Bulk Administration Tool

Part III: IPT Network Integration and Route Plan

Cisco Catalyst Switches

Configuring Cisco Gateways and Trunks

Cisco Unified CallManager Route Plan Basics

Cisco Unified CallManager Advanced Route Plans

Configuring Hunt Groups and Call Coverage

Implementing Telephony Call Restrictions and Control

Implementing Multiple-Site Deployments

Part IV: VoIP Features

Media Resources

Configuring User Features, Part 1

Configuring User Features, Part 2

Configuring Cisco Unified CallManager Attendant Console

Configuring Cisco IP Manager Assistant

Part V: IPT Security

Securing the Windows Operating System

Securing Cisco Unified CallManager Administration

Preventing Toll Fraud

Hardening the IP Phone

Understanding Cryptographic Fundamentals

Understanding the Public Key Infrastructure

Understanding Cisco IP Telephony Authentication and Encryption Fundamentals

Configuring Cisco IP Telephony Authentication and Encryption

Part VI: IP Video

Introducing IP Video Telephony

Configuring Cisco VT Advantage

Part VII: IPT Management

Introducing Database Tools and Cisco Unified CallManager Serviceability

Monitoring Performance

Configuring Alarms and Traces

Configuring CAR

Using Additional Management and Monitoring Tools

Part VIII: Appendix

Appendix A. Answers to Review Questions


Authorized Self-Study Guide Cisco IP Telephony (CIPT)
Cisco IP Telephony (CIPT) (Authorized Self-Study) (2nd Edition)
ISBN: 158705261X
EAN: 2147483647
Year: 2004
Pages: 329

Flylib.com © 2008-2020.
If you may any questions please contact us: flylib@qtcs.net