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Achieving Defense-in-Depth with Internal Firewalls
- Abstract
- A single firewall at the Internet gateway is no longer sufficient. Currently there is a trend toward more and more outside access to the enterprise network by employees, partners, customers, and suppliers. In addition, attackers are becoming more sophisticated. A sound security perimeter today requires more than a single firewall connected at the Internet router. By segmenting the network with multiple firewalls, we can achieve the holy grail of network security - Defense-In-Depth.