Network Monitoring within a DMZ

With the proliferation of DMZ’s (so-called De-Militarized Zones or firewall-protected areas) and Extranets today, network managers are increasingly faced with the problem of monitoring these protected areas using their existing management investment.  Although network management encompasses many areas, this paper defines monitoring as actively polling devices, interfaces, and applications for status and then notifying network management software in the Network Operations Center (NOC) of any problems. This document will describe a number of different solutions for monitoring DMZ devices: Open Firewall, Vendor Specific Tools, Tavve ZoneRanger.

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