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NBAR

Sep 16 2008   6:34PM GMT

Overheard: NBAR is a powerful application-layer firewall



Posted by: Margaret Rouse
firewalls, Cisco, deep packet inspection, NBAR, application-layer firewall

ddavis.jpg NBAR is a very powerful application-layer firewall that you may already have installed on your Cisco router. While traditional firewalls can only recognize traffic based on IOS Layers 3 or 4, Cisco’s NBAR can go all the way to Layer 7.

David Davis, What can Cisco’s Network-Based Application Recognition (NBAR) do for you?