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CWSP – TKIP Encryption Method
Here is my notes about Chapter 3 (Encryption Ciphers & Methods) of CWSP Study Guide. Symmetric & Asymmetric Algorithms In symmetric algorithm, both the encrypting & decrypting parties share...
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How to Study for CWSP ?
In this post I am going to describe the way I am studying for CWSP (Certified Wireless Security Professional) certification. I used only self-study method by going through the CWSP Official Study Guide...
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CWSP-SOHO 802.11 Security
Here is my notes on Chapter 6 – SOHO 802.11 Security of CWSP Official Study Guide. * WPA/WPA2-Personal is the most common security method used in SOHO environment. * WPA2-Personal use CCMP/AES where as...
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WLC Syslog Analysis
How do you proactively (prior to user complaints) identify wireless related issues in your environment ? Almost every one of us uses a WNMS (Wireless Network Management System) to monitor wireless...
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802.11ac Wireless Packet Captures
In this post we will see how to capture 802.11ac wireless frames using Cisco AP (802.11ac AP like 3700/2700/1700) as remote adapter. I have used OmniPeek WiFi Analyzer (10-day trial version) as...
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CWAP – 802.11 Overview
Here is the CWAP Official Study Guide Chapter 1 (802.11 Overview) summary notes. IEEE 802.11-2007 standard define communication mechanism only at Physical layer & MAC sublayer of the Data Link...
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MSE 8.0 Upgrade
Cisco Mobility Services Engine (MSE) supports following services 1. Location Services 2. Wireless Intrusion Protection Service 3. Mobile Concierge 4. CMX Analytics Service 5. CMX Connect & Engage...
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What is NMSP ?
Network Mobility Services Protocol (NMSP) manages communication between the mobility service engine and the wireless controller. Transport of telemetry, emergency, and RSSI values between the mobility...
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702W with WLC 8.0 ?
In this post we will see how to set up Cisco 702W Access Point with WLC running 8.0.100.0 code. Also we will look at QoS treatment of this AP for the devices connected to it (wired/wireless). It is a 2...
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CWAP – MAC Header : Frame Control
As shown in the below figure, 802.11 MAC header has 9 major fields 2 Byte – Frame Control 2 Byte – Duration/ID 4×6 Byte – Address 1 – 4 2 Byte – Sequence Control 2 Byte – QoS control 4 Byte – HT...
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CWAP – MAC Header : Addresses
802.11 MAC sublayer address is one of the following two types 1. Individual Address (known as unicast address) 2. Group Address (Multicast or Broadcast address) 802.11 frame can have upto 4 address...
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CWAP – 802.11 Mgmt Frame Types
802.11 Management Frames have MAC header with 3 addresses fields in it. If it is 802.11a/b/g then it has 24 byte MAC header where as if it is 802.11n management frame it has 28 byte (additional 4 byte...
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CWAP – 802.11 Control Frame Types
802.11 Control Frames assist with the delivery of Data & Management frames. Unlike management & data frames, Control frames does not have a frame body. The type (always 1 for control frames)...
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CWAP – MAC Header : QoS Control
QoS Control is a 16-bit field that identifies the Quality of Service (QoS) parameter of a data frame (only in data frame type QoS-Data).QoS Control field is comprised of five subfields 1. [bit 0-3 ]...
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My CWAP Study Notes
In this post I am going to summarize my CWAP (Certified Wireless Analysis Professional) notes. Like any other CWNP exam, this also has 70% passing mark & exam objective is shown as below with their...
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802.11ac with 3850 & 3702
In this post we will see 802.11ac performance using a 3702 with a Cisco 3850 WLC. I have used two 802.11ac clients (Samsung Galaxy S5 & Dell E7440 with Intel AC7260 NIC). Here is my topology for...
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802.11 Mgmt : Beacon Frame
Beacon frames are used by the access points (and stations in an IBSS) to communicate throughout the serviced area the characteristics of the connection offered to the cell members. This information...
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802.11 Mgmt : Action Frames
Action Frames are a type of management frame used to trigger an action in the cell. Action frame format is as shown below Category – Describes the action frame type. Here are the different category...
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802.11 Mgmt : Authentication Frame
Once a client station is discover a SSID (Probe Request/Response or listening to Beacons) it move to Join phase. This exchange comprise of at least 4 frames 1. Authentication (Request) 2....
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802.11 Mgmt : Deauth & Disassociation Frames
Deauthentication Frame Station or AP can send a Deauthentication Frame when all communications are terminated (When disassociated, still a station can be authenticated to the cell). Deauthentication...
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