Books
All the following references can be useful in helping you better understand the different aspects of networking and network security in particular. These references go from designing secure networks to understanding and maintaining secured networks.Akin, T. Hardening Cisco Routers . Cambridge, Massachusetts: O'Reilly Associates; 2002.Albritton, J. Cisco IOS Essentials . New York, New York: McGraw-Hill; 1999.Aziz, Z., J. Liu, A. Martey, and F. Shamim . Troubleshooting IP Routing Protocols . Indianapolis, Indiana: Cisco Press; 2002.Benjamin, H. CCIE Security Exam Certification Guide . Indianapolis, Indiana: Cisco Press; 2003.Bhaiji, Y. CCIE Security Practice Labs . Indianapolis, Indiana: Cisco Press; 2003.Black, U. Internet Security Protocols: Protecting IP Traffic . Old Tappan, New Jersey: Prentice Hall; 2000.Bokotey, D., A. Mason, and R. Morrow . CCIE Practical Studies: Security . Indianapolis, Indiana: Cisco Press; 2003.Bollopragada, V., C. Murphy, and R. White . Inside Cisco IOS Software Architecture . Indianapolis, Indiana: Cisco Press; 2001.Chapman, D. B. and S. Coopers . Building Internet Firewalls , 2nd Edition . Cambridge, Massachusetts: O'Reilly Associates; 2000.Cheswick, W. , et. al. Firewalls and Internet Security . Boston, Massachusetts: Addison-Wesley; 2003.Doraswamy, N. and D. Harkins . IPSec: The New Security Standard for the Internet, Intranet and Virtual Private Networks . Old Tappan, New Jersey: Prentice Hall; 2003.Doyle, J. Routing TCP/IP , Volume I . Indianapolis, Indiana: Cisco Press; 1998.Doyle, J. and J. DeHaven Carroll . Routing TCP/IP , Volume II . Indianapolis, Indiana: Cisco Press; 2001.Held, G. and K. Hundley . Cisco Security Architectures . New York, New York: McGraw Hill; 1999.Kaberna, J. CCIE Security Written Exam Workbook . Rochester Hills, Michigan: Network Learning, Incorporated; 2002.Kalman, S. Web Security Field Guide . Indianapolis, Indiana: Cisco Press; 2002.Malik, S. Network Security Principles and Practices . Indianapolis, Indiana: Cisco Press; 2001.McClure, S. , et. al. Hacking Exposed: Network Security Secrets & Solutions , Fourth Edition . New York, New York: McGraw-Hill; 2003.Nedeltchev, P. Troubleshooting Remote Access Networks . Indianapolis, Indiana: Cisco Press; 2002.Parkhurst, W. Cisco BGP-4 Command and Configuration Handbook . Indianapolis, Indiana: Cisco Press; 2001.Solie, K. CCIE Practical Studies , Volume I . Indianapolis, Indiana: Cisco Press; 2001.Solie, K. and L. Lynch . CCIE Practical Studies , Volume II . Indianapolis, Indiana: Cisco Press; 2003.