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Category: VOIP

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Solution to VOIP Injects for Locked Shields 2014

  • Radovan Brezula
  • June 17, 2014

In 2014, for the first time in Locked Shields history, VOIP topic was brought to the […]

  • VOIP

Blue VOIP Systems Misconfiguration for Locked Shields 2014

  • Radovan Brezula
  • June 16, 2014

The article aims to examine misconfiguration of Cisco Unified Communications Managers 8.5.1 (CUCMs) that represented […]

  • VOIP

VOIP Scenario for Locked Shields 2014

  • Radovan Brezula
  • June 6, 2014

In a couple months ago I was asked to bring VOIP topic to the Locked […]

  • VOIP

VOIP HOME LAB - 1.11 Filtering Traffic on Headquarters Router with Access Lists

  • Radovan Brezula
  • February 4, 2014

In a previous tutorial we have configured SIP trunk and route patterns which allow users […]

  • VOIP

VOIP HOME LAB – Part 1.10 Connecting Headquarters and Branch via SIP trunk

  • Radovan Brezula
  • January 24, 2014

The tutorial discuss configuration steps that are needed to connect Headquarters and Branch office using […]

  • VOIP

VOIP HOME LAB - Part 1.9 Cisco 2621XM and Belkin N+ Router Configuration

  • Radovan Brezula
  • January 20, 2014

This is another tutorial from the series of VOIP tutorials that describe building VOIP home […]

  • VOIP

VOIP HOME LAB - Part 1.8 Cisco Unified Communications Manager 8.5.1 Configuration

  • Radovan Brezula
  • January 13, 2014

In a previous tutorial we completed Cisco Unified Communications Manager 8.5.1 installation. In this tutorial […]

  • VOIP

VOIP HOME LAB - Part 1.7 Cisco Unified Communications Manager 8.5.1 Installation

  • Radovan Brezula
  • January 7, 2014

This is another tutorial from the series of articles that describe building VOIP lab at […]

  • VOIP

VOIP HOME LAB - Part 1.6 Cisco Catalyst 3550 Switch and Belkin N+ Wireless Router Configuration

  • Radovan Brezula
  • December 23, 2013

Cisco Catalyst 3550 plays several important roles in our voice home lab. Firstly, it is […]

  • VOIP

VOIP HOME LAB - Part 1.5.2 Open vSwitch and VMware Workstation Configuration

  • Radovan Brezula
  • December 22, 2013

In a previous tutorial we described how are the network devices and virtual machines connected in […]

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NetFlow
NetFlow vs. sFlow vs. IPFIX vs. NetStream. Network Traffic Analysis and Monitoring.

BGP Security: BGPsec Protocol

BGP protocol
BGPsec is an integral part of the BGP protocol, and thus, BGP routers must do the…

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