Firewalls for Open Networks

Conventional Security Wisdom

Gray's Network Security Axioms

Perimeter Protection Paradox

Credo

"Inverted Networks"

Heroic (but futile) Endeavors

Properties of ALL Firewalls

Where do firewalls make sense?

Good Uses for a Firewall

Fundamental Firewall Truths...

The Dark Side of Border Firewalls
 It's not just that they don't solve the problem very well;
large-perimeter firewalls have serious unintended consequences

Mitnick's Perspective

Do You Feel Lucky?

Distributed Firewall Management

UW's Logical Firewall

UW Logical Firewall - How it Works

LFW Traffic Flow

LFW Advantages

LFW Disadvantages

LFW - Setup Overview

LFW Results

Is it enough?

Resources