An Effective Packet Filtering Mechanism for Reducing Complexity

Provided by: International Journal of Emerging Technology and Advanced Engineering (IJETAE)
Topic: Security
Format: PDF
Most organizations need to control the traffic that crosses into and out of their networks to prevent attacks from both the net-work as well as organization perspective. The firewall is a crucial component in the defense mechanisms of every network connected to the internet. It is the first filtering device that sees IP packets that attempt to enter a network from outside and the last device to let an outgoing packet as well. It's like a security guard that uses policies to make filtering decision on every packet that crosses it: whether to let it pass or drop it.

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