Firewall Book

Network security, attacks on ARP, TCP/IP, DNS, & BGP protocols; Sniffing/Spoofing; Firewall; VPN; How the Internet works

If you're using Cisco routers and switches, much of your security can be accomplished using the features built into the hardware and IOS. That’s what the Exam-Pack: 642-502 SNRS videos are all about:
Authorize access for legitimate users with the AAA architecture.
Use Cisco's IOS Firewall for Context-Based Access Control (CBAC) and Intrusion Prevention.
Create identity-based networking services to prevent denial-of-service (DoS) and other Layer 2 attacks.
Block rogue DHCP servers from appearing on your network.
Configure VPN solutions using IPSEC tunneling for secure branch-to-branch data transmission.
Establish advanced VPN security by creating a Certificate Authority (CA) on a private subnet.
Simplify remote VPN management using Easy VPN.
Manage multiple devices more easily using Cisco's Security Device Manager (SDM) web interface.
In addition to these useful on-the-job skills taught in Exam-Pack: 642-502
SNRS, the series maps to the exam objectives for Cisco’s 642-502 SNRS exam to prepare you for certification. This exam is one of five required for Cisco Certified Security Professional (CCSP) certification. …

A Cisco troubleshooting methodology. It includes coverage of: how to create, operate and use Cisco Access lists; how to secure a network when access occurs via a Cisco Router; and the TCP/IP Protocol and its use with Cisco routers.