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Appendix D: Network, Routing, and Firewall Basics
D.1 Network Basics
D.1.1 IP Addresses
D.1.1.1 Netmask
D.1.1.2 Subnet Addressing
D.1.1.3 Private IP Addresses
D.1.2 Network Address Translation (NAT)
D.1.3 Dynamic Host Configuration Protocol (DHCP)
D.2 Router Basics
D.2.1 Why use a Router?
D.2.2 What is a Router?
D.2.3 Routing Information Protocol (RIP)
D.3 Firewall Basics
D.3.1 What is a Firewall?
D.3.2.1 Stateful Packet Inspection
D.3.2.2 Denial of Service (DoS) Attack
D.3.2 Why Use a Firewall?
Appendix E: Virtual Private Networking
E.1 What is a VPN?
E.1.1 VPN Applications
E.2 What is IPSec?
E.2.1 IPSec Security Components
E.2.1.1 Authentication Header (AH)
E.2.1.2 Encapsulating Security Payload (ESP)
E.2.1.3 Security Associations (SA)
E.2.2 IPSec Mode
E.2.3 Tunnel Mode AH
E.2.4 Tunnel Mode ESP
E.2.5 Internet Key Exchange (IKE)
