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Preface



Part I. 802.11 Security Basics



1. A Wireless World

What Is Wireless?

Radio Transmission

Inherent Insecurity

802.11

Structure of 802.11 MAC

WEP

Problems with WEP

Is It Hopeless?



2. Attacks and Risks

An Example Network

Denial-of-Service Attacks

Man-in-the-Middle Attacks

Illicit Use

Wireless Risks

Knowing Is Half the Battle



Part II. Station Security



3. Station Security

Client Security Goals

Audit Logging

Security Updates



4. FreeBSD Station Security

FreeBSD Client Setup



5. Linux Station Security

Linux Client Setup

Kernel Configuration

OS Protection

Audit Logging

Secure Communication



6. OpenBSD Station Security

OpenBSD Client Setup

Kernel Configuration

OS Protection

Audit Logging



7. Mac OS X Station Security

Mac OS X Setup

OS Protection

Audit Logging



8. Windows Station Security

Windows Client Setup

OS Protection

Audit Logging

Secure Communication



Part III. Access Point Security



9. Setting Up an Access Point

General Access Point Security

Setting Up a Linux Access Point

Setting Up a FreeBSD Access Point

Setting Up an OpenBSD Access Point

Taking It to the Gateway



Part IV. Gateway Security



10. Gateway Security

Gateway Architecture

Secure Installation

Firewall Rule Creation

Audit Logging



11. Building a Linux Gateway

Laying Out the Network

Building the Gateway

Configuring Network Interfaces

Building the Firewall Rules

MAC Address Filtering

DHCP

DNS

Static ARP

Audit Logging

Wrapping Up



12. Building a FreeBSD Gateway

Building the Gateway

Building the Firewall Rules

Rate Limiting

DHCP

DNS

Static ARP

Auditing



13. Building an OpenBSD Gateway

Building the Gateway

Building the Firewall Rules

Rate Limiting

DHCP

DNS

Static ARP

Auditing



14. Authentication and Encryption

Portals

IPsec VPN

802.1x



15. Putting It All Together

Pieces of a Coherent System

User Knowledge

Looking Ahead



Index