So unlike static packet filtering (an earlier technology) which examined packets based on the information in their header, stateful inspection can actually track each connection across all interfaces ...

In the last issue we started following a packet's journey from the wire up to the higher levels of network stack processing. We left the packet at the end of layer 3 processing, where IP has ...

Learn how firewalls have progressed from simple packet filtering to more sophisticated application-level filtering. Webopedia.com defines a firewall as “a system designed to prevent unauthorized ...

I am currently running a USB ADSL (static IP I beleive - 62.xx.xx.xx) service to other PCs on the network via Winroute Pro running on windows 2K advanced server. (ADSL to Server to Switch to 3 PCs - ...

Network geeks among you may remember my article, “Linux Socket Filter: Sniffing Bytes over the Network”, in the June 2001 issue of LJ, regarding the use of the packet filter built inside the Linux ...