Cisco how-to guides for firewalls, IPv6, contact centers and security exams
If you're ready for a technical deep dive in a book, the Cisco Networking Technology Series provides that in its collection of volumes on topics that include Cisco firewalls, Cisco Unity Connection voice-messaging platform, Cisco Contact Center, <a href="http://www.networkworld.com/news/2009/073009-ipv6-guide.html">IPv6</a> and more. Here's a quick review of the books published in this series by Cisco Press this year.