IP Telephony

Table of contents:

Applied Knowledge Questions

The following questions are designed to test your knowledge of supporting-technology design considerations and sometimes build on knowledge found elsewhere in the book. You might find that a question has more than one possible answer. The answers provided in Appendix B are intended to reinforce concepts that you can apply in your own networking environment.


In the transparent cache deployment, WCCP is generally used to redirect web queries from a router to the cache. Assuming the cache is on a dedicated router interface and is properly filtered with ACLs, what is the most likely way a determined attacker could try to compromise the cache?


Considering the techniques used to load balance security devices in this chapter, are there any unique considerations when attempting to load balance IPsec devices?


In a teleworker environment, are there any unique security considerations for WLANs?


Why are some of the 802.1x concerns discussed in Chapter 9 lessened in a WLAN environment?


Are there any security considerations for using IPsec and IPT together?

Part I. Network Security Foundations

Network Security Axioms

Security Policy and Operations Life Cycle

Secure Networking Threats

Network Security Technologies

Part II. Designing Secure Networks

Device Hardening

General Design Considerations

Network Security Platform Options and Best Deployment Practices

Common Application Design Considerations

Identity Design Considerations

IPsec VPN Design Considerations

Supporting-Technology Design Considerations

Designing Your Security System

Part III. Secure Network Designs

Edge Security Design

Campus Security Design

Teleworker Security Design

Part IV. Network Management, Case Studies, and Conclusions

Secure Network Management and Network Security Management

Case Studies



Appendix A. Glossary of Terms

Appendix B. Answers to Applied Knowledge Questions

Appendix C. Sample Security Policies

INFOSEC Acceptable Use Policy

Password Policy

Guidelines on Antivirus Process


Network Security Architectures
Network Security Architectures
ISBN: 158705115X
EAN: 2147483647
Year: 2006
Pages: 249
Authors: Sean Convery

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