Overheard in the tech blogosphere » NBAR http://itknowledgeexchange.techtarget.com/overheard A Whatis.com blog Tue, 19 Feb 2013 14:32:17 +0000 en-US hourly 1 Overheard: NBAR is a powerful application-layer firewall http://itknowledgeexchange.techtarget.com/overheard/overheard-nbar-is-a-powerful-application-layer-firewall/ http://itknowledgeexchange.techtarget.com/overheard/overheard-nbar-is-a-powerful-application-layer-firewall/#comments Tue, 16 Sep 2008 18:34:08 +0000 Margaret Rouse http://itknowledgeexchange.techtarget.com/overheard/overheard-nbar-is-a-powerful-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?

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