Here's the book you need to prepare for Exam 642-501, Securing Cisco IOS Networks (SECUR). This Study Guide provides:* In-depth coverage of every SECUR exam objective* Practical information on Cisco security solutions* Hundreds of challenging practice questions, in the book and on the CD* Leading-edge exam preparation software, including a testing engine, and electronic flashcardsAuthoritative coverage of all exam objectives, including:* Basic Cisco Router Security* Advanced AAA Security for Cisco Router Networks* Cisco Router Threat Mitigation* Cisco IOS Firewall CBAC Configuration* Cisco IOS Firewall Authentication Proxy Configuration* Cisco IOS Firewall IDS Configuration* Building Basic IPSec Using Cisco Routers* Building Advanced IPSec VPNs Using Cisco Routers and Certificate Authorities* Configuring Cisco Remote Access IPSec VPNs* Managing Enterprise VPN Routers