Securing Cisco IP Telephony Networks

Appendix B. Cisco IP Telephony: Firewalling and Intrusion Prevention

Firewalls, Network Intrusion Prevention Systems (NIPS), and Host Intrusion Prevention System (HIPS) continue to be the agents that defend the data and voice streams from external and internal attacks. As the topology of the enterprise network continued to change dramatically over the past few years, firewalls, Intrusion Prevention and Detection systems also continue to evolve. With the evolution of Unified Threat Management (UTM) systems and self-defending networks, Cisco has empowered you to safeguard the core of almost every successful business in existence: communications.

This appendix introduces the best practices to defend your IP Telephony network with Cisco Adaptive ...