Capturing WLAN Packets using WireShark

If you are studying for CCNP Wireless or CWNP Certification, an essential part of the study process is actually getting to lab it all out so as to understand the concepts. I noticed that my Wireshark output lacked the 802.11 management or control packets while trying to capture Open System Authentication process. This blog will explain … Continue reading Capturing WLAN Packets using WireShark

CWNP’s CWSP-205 Official Study Guide Book Review | Part 1

When I think of the CWNP Program, I think of actual Wireless knowledge that Vendor oriented programs have failed to deliver. I have always used CWNP books to complement information that was missing during my past CCNP Wireless exams (2 more to go). It was therefore only logical that I would turn to their CWSP book … Continue reading CWNP’s CWSP-205 Official Study Guide Book Review | Part 1

CCNP Wireless 642-747 IUWMS Summary Notes 5 : Location Tracking Techniques – Angulation (AoA / DoA)

Angulation (Angle-Based) Techniques Localization is based on the angle of the received signal. Angle of Arrival (AoA) / Direction of Arrival (DoA) AoA determines the angle of Incidence at which signals arrive at the receiving sensor. This angle is used to estimate the location of the device using the intersection of the two lines of … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 5 : Location Tracking Techniques – Angulation (AoA / DoA)

CCNP Wireless 642-747 IUWMS Summary Notes 4 : Location Tracking Techniques – Lateration (RSS)

Received Signal Strength (RSS) Localization is based on the received signal strength. The RSS is measured either by the mobile device or by the receiving sensor. The following information is needed to calculate the distance between the sensor and the device: Transmitter output power Cable losses Antenna gain Path loss model(PL) A common PL model … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 4 : Location Tracking Techniques – Lateration (RSS)

CCNP Wireless 642-747 IUWMS Summary Notes 3 : Location Tracking Techniques – Lateration (ToA and TDoA)

Distance-Based (Lateration) Techniques The tracking position is determined based on distance. The distance can be measured in three different ways: Using Time of Arrival (ToA) Using Time Difference of Arrival (TDoA) Using Received Signal Strength In ToA and TDoA, localization is based on propagation time, whereas for RSS systems, propagation is based on signal strength. … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 3 : Location Tracking Techniques – Lateration (ToA and TDoA)

CCNP Wireless 642-747 IUWMS Summary Notes 1 : Introduction to Location-Based Services

Advantages of Location-based services. Location-based services helps us to: Effectively locate assets and personnel. Improve productivity by locating effectively. Reduce unauthorized removal of assets and, thus, helps reduce losses. Improve customer satisfaction Improve WLAN planning and tuning Coordinate device location with Security policy enforcement Determine rogue device location Monitor health and status of key assets. … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 1 : Introduction to Location-Based Services