Ppt on network security in ieee format

1 Mobile Communications Chapter 7: Wireless LANs  Characteristics  IEEE 802.11  PHY  MAC  Roaming .11a, b, g, h, i …  HIPERLAN  Standards overview.

. 10 m range  carrier detection, energy detection, synchonization 11 FHSS PHY packet format synchronizationSFDPLWPSFHECpayload PLCP preamblePLCP header 801612416variable bits Synchronization  synch with 010101... pattern SFD (Start/in security. Study Groups  5 GHz (harmonization ETSI/IEEE) – closed  Radio Resource Measurements – started  High Throughput – started 40 ETSI - HIPERLAN ETSI standard  European standard, cf. GSM, DECT,...  Enhancement of local Networks and interworking with fixed networks/


Doc.: IEEE 802.11-06/1092r2 Submission Nov 2006 D. Harkins, Tropos Networks Slide 1 Secure Mesh Formation Notice: This document has been prepared to assist.

.11-06/1092r2 Submission Nov 2006 D. Harkins, Tropos Networks Slide 1 Secure Mesh Formation Notice: This document has been prepared to assist IEEE 802.11. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve/


Doc.: IEEE 802.11-15/1529r0 Report 802.11 January 2016 Closing Reports Date: 2016-01-21 Authors: Slide 1 January 2016 Adrian Stephens, Intel Corporation.

as long as possible –Near the end of sponsor ballot, turn these all into.wmf (windows meta file) format files (you can do this from visio using “save as”). Keep separate files for the.vsd source and / January 2016 Slide 120Adrian Stephens, Intel Corporation doc.: IEEE 802.11-15/1529r0 Report Examples of other technical work ongoing in WFA –Neighbor Awareness Networking – low power discovery –Wireless Serial Bus –Display –Security –Device Provisioning Protocol –Application Services –LTE Coexistence –Multiband/


7.1 Prof. Dr.-Ing. Jochen H. Schiller MC Mobile Communications Chapter 7: Wireless LANs Characteristics IEEE (PHY,

transmission technology simplified spontaneous cooperation at meetings easy to use for everyone, simple management protection of investment in wired networks security (no one should be able to read my data), privacy (no one should be able to /, no QoS 7.37 Prof. Dr.-Ing. Jochen H. Schiller www.jochenschiller.de MC - 2009 IEEE 802.11a – PHY frame format rateservicepayload variablebits 6 Mbit/s PLCP preamblesignaldata symbols121variable reservedlengthtailparitytailpad 616611214variable 6, 9, 12, 18, 24, 36/


Doc.: IEEE 802.11-98/178 Submission July 2000 A. Prasad, A. Raji Lucent TechnologiesSlide 1 A Proposal for IEEE 802.11e Security IEEE 802.11 Task Group.

the use of EAPOL in Port based Network Access Control in IEEE 802.11 wireless LAN infrastructures. EAPOL communication occurs in an unsecured shared environment, so it is vulnerable to attack. doc.: IEEE 802.11-98/178 Submission July 2000 A. Prasad, A. Raji Lucent TechnologiesSlide 17 Proposed Authentication Methodology Negotiate a secret key prior to station authentication step to create a secure encrypted tunnel. Negotiate a/


Contents Internet Layers, Basics

IEEE 802.1X Security Properties Enables use of Kerberos v5 for authentication Allows fine-grain authorization: Authorization can include bandwidth limits, Virtual LAN, QoS, etc. User-based identification Identification based on NAI (Network Access Identifier, RFC 2486) Allows cross-realm access in public places Receives wide support in/CA, e.g., {C=de, S=.., O=Comp} YYMMDD; HHMM{SS}: “Y2K problem” Format of certificate is ASN.1 DER (Direct Encoding Rules) produces octets for transmission Brisbane, Sep 2003 (/


IEEE 802.15.4. Slide 2 Content Overview Topologies Superframe structure Frame formatting Data service Management service Interframe spacing CSMA procedure.

IEEE 802.15.4 Slide 2 Content Overview Topologies Superframe structure Frame formatting Data service Management service Interframe spacing CSMA procedure Introduction Until recently the main concentration In wireless was on high throughput. Some applications for home automation, security,/sleep for extended period over multiple beacons Allows control of receiver state by higher layers 11 Typical Network Topologies Slide 12 Star Topology FFD RFD Communications flow Master/slave PAN coordinator Slide 13 Peer-/


Summer Workshop on Cyber Security Computer Networks Security (Part 1) Dr. Hamed Mohsenian-Rad University of California at Riverside and Texas Tech University.

Network of Networks ISPs Institutional Networks Home Networks Mobile Networks  Internet Protocols: Control Sending & Receiving of Messages E.g.: TCP, IP, HTTP, 802.11 mobile network global ISP regional ISP home network institutional network Overview of Computer Networks What is a Protocol? Summer Workshop on Cyber Security July 14 - 18, 2014 – Network Security, UCR & TTU4  Human Protocol: “What time is it?”, “I have a question.”, …  Network Protocols: Machines instead of humans. Protocols define format/


Mobile Internet Wireless Network Architectures and Applications

WAE components Architecture User Agents WML WMLScript WTA Application model, Microbrowser, Gateway, Server User Agents WML/WTA/Others content formats: vCard, vCalendar, Wireless Bitmap, WML.. WML XML-Syntax, based on card stacks, variables, ... WMLScript procedural,/ network load Help in overcoming latency Execute asynchronously and autonomously Several issues yet to be addressed Heavy frameworks Interoperability Security concerns Sridhar Iyer IIT Bombay Outline Introduction and Overview Wireless LANs: IEEE /


Wireless Networking Technologies WLAN, WiFi Mesh and WiMAX

stronger shading due to higher frequency, no QoS Sridhar Iyer IIT Bombay IEEE 802.11a – PHY frame format 4 1 12 1 6 16 variable 6 variable bits rate reserved /network Sridhar Iyer IIT Bombay Wireless security technologies SET for transaction security S/MIME and PGP for secure email Java security (sandboxes) Database security Applications Can use higher level services to compensate for lower layers Tradeoffs in performance and security SSL and TLS Web security (HTTPS, PICS, HTTP Headers) Proxy server security/


Local Area Networks (LANs)

Transmits frames across the transmission medium in a bitstream 5. Session C. Controls access to the transmission medium and encapsulates packets into frames 4. Transport D. Translates data into a standardized format 3. Network E. Ensures that data is /clients for purposes of securing emergency (911) services Table 7-1: IEEE committees (contd) 188 Lunch Break Lunch Be back in 45 minutes! Lesson 7 Networking Standards Organizations The IEEE and LAN Standards IEEE 802.3: Ethernet Standards IEEE 802.11: Wireless/


Advanced Information Security – Final Project Made Harta Dwijaksara.

.4 enabled device due to incomplete design of nonce  Elaborate the requirements for nonce design in 802.1.5.4 standard  Design a new nonce format  Provides comparison to the existing nonce design  Nonce has really important role but the /en.wikipedia.org/wiki/IEEE_802.15.4- 2006  [7] Yang Xiao, Hsiao-Hwa Chen and Bo Sun, “Security Services and Enhancement in the IEEE 802.15.4 Wireless Sensor Networks”, IEEE BLOBECOM, 2005  [8] FIPS Publication, “Advanced Encryption Standard” U.S. DoC/NIST, 2001  [9]/


CS 843 - Distributed Computing Systems Chapter 3: Networking and Internetworking Chin-Chih Chang, From Coulouris, Dollimore and Kindberg.

information, and destination information. Each extension header type has a specific size and format and is transmitted after the basic header and before the payload. Instructor’s Guide/secure channels at the IP level. Instructor’s Guide for Coulouris, Dollimore and Kindberg Distributed Systems: Concepts and Design Edn. 3 © Addison-Wesley Publishers 2000 Network Case Studies The IEEE 802 network standards are shown in Figure 3.21. The IEEE 802.3 Ethernet standard has largely won the marketplace. The IEEE/


Modern Services of Data Network Part I Communication

IEEE 802.11i Mired in technical debate and politics, this is critical to WLAN market expansion, but delays and indecisiveness may make it meaningless if de facto standards emerge IEEE 802.16 Its goal is to define physical and MAC standards for fixed point-to-multipoint broadband wireless access (BWA) systems IEEE 802.1x Security framework for all IEEE 802 networks/prioritising voice. All transmissions are digital - All the transmissions are in digital format unlike ADSL where it is a hybrid of analogue and (/


Data Networking.

network WiFi Protected Access (WPA) – a specification of security enhancements for WiFi networks IEEE 802.1x – authenticates users who want to access 802.11x wireless networks Remote Authentication Dial-In User Service (RADIUS) – a popular method for centralizing remote user access Wireless Network/Control Information (TCI) Field Includes the following three components: A 3-bit user_priority field A 1-bit canonical format identifier (CFI) A 12-bit VLAN ID field (VID) 802.1p Header Includes a 3-bit priority /


1 Wireless LAN & IEEE 802.11 An Introduction to the Wi-Fi Technology Wen-Nung Tsai

CRC32 Frame control Duration /ID Addressing 1 Addressing 2 Addressing 3 Sequence control Addressing 4 Frame body CRC 42 IEEE 802.11 Frame format ( con ’ t ) Protocol version TypeSubtypeTo DSFrom DS More flag RetryPwr mgt More Data WEPOrder Frame control / unlikely (the end result is similar to Collision Detection) 48 802.11b security features ESSID Network name, not encrypted Rudimentary because the ESS ID is broadcast in beacon frames Association Capability to register a station with a WLAN WEP (Wired/


Chapter: 01-Mobile Computing Introduction to Mobile Computing Security By: Mr. Abdul Haseeb Khan.

(a) MAPSEC (b) MAP over IP-based Networks 2. SECURITY IN IEEE 802.11 NETWORKS Security in IEEE 802.11 I.IEEE 802.11 defines two classes of security algorithms for : algorithms for creating and using an Robust Security Network Association (RSNA), called RSNA algorithms and pre-RSNA algorithms. Pre-RSNA security comprises Wired Equivalent Privacy (WEP) and IEEE 802.11 entity authentication. II.The RSNA security comprises Temporal Key Integrity Protocol (TKIP), CCMP, RSNA/


Is Teaching Wireless Networking in your Future? Karl Dietrich – Lansing Community College Bill Saichek – Orange Coast College.

-Middle/Evil Twin Man-in-the-Middle/Evil Twin Legacy 802.11 Security Protections The original IEEE 802.11 standard defined three security mechanisms The original IEEE 802.11 standard defined three security mechanisms SSID cloaking or hiding SSID cloaking or hiding MAC address filtering MAC address filtering WEP – Wired Equivalent Privacy WEP – Wired Equivalent Privacy IEEE 802.11 standard’s security mechanisms for wireless networks have fallen well/


Copyright © 2012 Certification Partners, LLC -- All Rights Reserved Network Technology Associate v2.0.

IEEE LAN Standards IEEE 802.2 Ethernet/IEEE 802.3 IEEE 802.3u — Fast Ethernet IEEE 802.3z and 802.3ab — Gigabit Ethernet IEEE 802.3ae — 10-Gigabit Ethernet IEEE 802.5 — Token Ring IEEE/use by: –Partitioning the hard disk –Creating logical drives –Formatting logical drives Copyright © 2012 Certification Partners, LLC -- All Rights/content contained in Web sites and e-mail messages Copyright © 2012 Certification Partners, LLC -- All Rights Reserved Defeating Network Attacks OSI/RM security services –/


Copyright © 2004 ProsoftTraining, All Rights Reserved. Network Technology Foundations © 2007 Prosoft Learning Corporation All Rights Reserved.

many as 127 peripheral devices in a daisy chain configuration FireWire (IEEE 1394): –A high-speed /formatting characteristics of a word- processing file Education and IT Careers University degrees are available in: –Computer science –Computer engineering –Management information systems Employers are also looking for: –Interpersonal skills –Business skills –Project management skills Education and IT Careers (cont’d) Importance of continuing education Obtain certifications in: –A+ –CIW –Network+ –Security/


Mobility and Future Internet Networking Lab. Department of Computer Engineering Kyung Hee University Networking Lab. Department of Computer Engineering.

options in the IP header IPv6 provides security protocols hence simplifying the authentication process Route Optimization is Mandatory Return Routerability is checked for the security reason 9 Proxy Mobile IPv6 Network-based Mobility  Mobility handled by the network,/ Mapping table update DSPDSP HC1HC1 CLREQ IPIP CLREP Network Header & Application Data or Dst panDst EUID 64Src panSrc EUID 64 PreambleFCF Dst16Src16 Fchk SFDLen DSN Max 127 bytes IEEE 802.15.4 Frame Format MESH : Mesh Header Dispatch (DSP) : /


Septembre 2010 Jin-Meng Ho, Texas Instruments. doc.: IEEE 802. 15-10-0676-00-0006 Slide 1Submission Project: IEEE P802.15 Working Group for Wireless Personal.

Networks) and sensor networks. ISO/IEC 29192 should be considered in doc. IEEE802.15.6. Proposed change: As in comment. Resolution: Rejected. Presentation has not been made to TG6 showing applicability of ISO/IEC 29192 to BAN. Note: The resolution was made by the MAC-Security subgroup at the July IEEE/supported. Proposed change: Implement accordingly. Proposed resolution: Rejected. (1) The frame format and hence the formats for the nonce and the authentication and encryption blocks are all different. Hence a/


Doc.: IEEE 802. 15-09-0611-01-004f Submission September 2009 Adrian Jennings, Time DomainSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal.

RTLS networks September 2009 Adrian Jennings, Time DomainSlide 73 doc.: IEEE 802. 15-09-0611-01-004f Submission 2.4 GHz PHY – Source Address Not required for RFID/RTLS functionality Optionally zero in 15.4 so no change is required September 2009 Adrian Jennings, Time DomainSlide 74 doc.: IEEE 802. 15-09-0611-01-004f Submission 2.4 GHz PHY – Security Header Same format and functionality/


Dr. L. Christofi 1 Local & Metropolitan Area Networks ACOE322 Lecture 3 LAN types.

Dr. L. Christofi 30 Ethernet Disadvantages Lack of priority levels Cannot perform real-time communication Security issues Dr. L. Christofi 31 Ethernet Switching Recent development: Connect many Ethernet segments or subnets/format, interfaces, procedural rules and cables, but just reduce the bit time from 100ns to 10ns. Dr. L. Christofi 38 IEEE 802.3 100BASE-T Physical Layer Medium Alternatives Dr. L. Christofi 39 Configuration and operation In its simplest form, a 100BASE-T network is configured in/


IEEE 802.21 Submission May 2004 Vivek Gupta, Intel CorpSlide 1 Global Network Neighborhood Vivek Gupta Intel Corporation May 2004.

and well understood Use Compiler/Parser etc. tools already available and in use Existing Information formats –ASN.1 –XML –TLV –Variant based Use ASN.1 for extensibility, compatibility and ease of use IEEE 802.21 Submission May 2004 Vivek Gupta, Intel CorpSlide 6 Information Elements Type of wireless network –802.x, zG, etc. Security –802.1x based, Pre-authentication supported, etc. RF Link layer –Channel/


Doc.: IEEE 802. 15-09-0611-00-004f Submission September 2009 Adrian Jennings, Time DomainSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal.

doc.: IEEE 802. 15-09-0611-00-004f Submission UWB PHY – Destination PAN ID Same format and functionality as 15.4 Particularly important for adjacent but non- interacting RTLS networks September 2009 Adrian Jennings, Time DomainSlide 27 doc.: IEEE 802. / Changed Infrastructure will run in promiscuous mode as already defined Tags will run in Aloha mode as already defined No change to security protocols No change to packet format September 2009 Adrian Jennings, Time DomainSlide 83 doc.: IEEE 802. 15-09-0611/


Doc.: IEEE 802.11-05/0641r1 Submission July 2005 Jan Kruys, Shah Rahman.e.a, CiscoSlide 1 Tree Based Routing Protocol 2005-07-11 NOTE: this document replaces.

Network size doc.: IEEE 802.11-05/0641r1 Submission July 2005 Jan Kruys, Shah Rahman.e.a, CiscoSlide 6 Basic Requirements Connectivity – hooking nodes together Security – protect data and the network QoS – to meet the needs of users Management – to control the network Discovery/in the range of 84 to 140 packets = <50msec or < 20% 8 Requests, 8 Responses 4 Requests, 4 Responses 2 Requests, 2 Responses doc.: IEEE 802.11-05/0641r1 Submission July 2005 Jan Kruys, Shah Rahman.e.a, CiscoSlide 27 Message Formats/


Doc.: IEEE 802.15-14-0699-00 Submission November 2014 Robert F. Heile, ZigBee AllianceSlide 1 93rd Session of meetings of the IEEE 802.15 Working Group.

Security Consideration Revised Timeline Letter Ballot: May 2016 Slide 50 11/24/2015 Myung Lee, CUNY doc.: IEEE 802.15-14-0699-00 Submission Future works For v.7 –To resolve all TBD items in/ Produce "Minimal 6TiSCH Configuration" defining how to build a 6TiSCH network using the Routing Protocol for LLNs (RPL) and a static TSCH /resolution  Thursday, 6 Nov, AM2: LB97 Comment resolution  Thursday, 6 Nov, PM1: BRC formation, approval of resolutions to date, conference call scheduling  SC WNG (Wed, 5 Nov, AM2)/


Doc.: IEEE 802.11-12/1305r0 Submission November 2012 Dorothy Stanley, Aruba NetworksSlide 1 IEEE 802.11-IETF Liaison Report Date: 2012-11-11 Authors:

-6lowpan-hc/http://datatracker.ietf.org/doc/draft-ietf-6lowpan-hc/ –RFC 6282, “Compression Format for IPv6 Datagrams over IEEE 802.15.4-Based Networks” published, see http://datatracker.ietf.org/doc/rfc6282/http://datatracker.ietf.org/doc/rfc6282/ –/ietf-core- groupcomm/ –Updated: Blockwise transfers in CoAP, see http://datatracker.ietf.org/doc/draft-ietf-core-block/http://datatracker.ietf.org/doc/draft-ietf-core-block/ –Of interest: Security Bootstrapping of Resource-Constrained Devices, see http:///


Doc.: IEEE 802.11-05/0395-00-000s Submission May 2005 Jonathan Agre et al., Fujitsu Labs of AmericaSlide 1 802.11 TGs ESS Mesh Networking Proposal Preliminary.

MP either requests or waits for next Network Advertisement message If open security, then MP simply waits for Network Advertisement doc.: IEEE 802.11-05/0395-00-000s Submission May 2005 Jonathan Agre et al., Fujitsu Labs of AmericaSlide 11 Mesh Network Maintenance (MNM) Handles addition, deletion of MPs, mobility Maintenance scheme is function of routing protocol option in effect –Format of net advertisement data also defined/


Doc.: IEEE 11-04/0319r0 Submission March 2004 W. Steven Conner, Intel Corporation Slide 1 Architectural Considerations and Requirements for 802.11 ESS.

-AP security (authentication, key distribution, etc.)  802.11 ESS Mesh Path Formation/Forwarding – Establishment of end-to-end data comm. paths in a mesh network, potentially across multiple radio hops  Key Components:  Multi-hop topology discovery  Radio-aware path selection/data delivery  LAN broadcast  Goals:  Interoperability through standard protocol tuned for core usage model requirements  Extensibility for future applications and technology enhancements Doc.: IEEE 11/


IEEE 802.11 無線區域網路系統及通訊協定 林文宗博士 現任:明新科技大學資訊工程系助理教授 明新科技大學電算中心網路組組長 經歷:工研院資通所無線通訊技術組顧問 麟瑞科技無線通訊技術顧問 明新科技大學電算中心網路組組長 國立清華大學資訊工程學系博士

Mesh security Mesh beaconing and synchronization Mesh beaconing and synchronization Mesh Coordination Function Mesh Coordination Function Mesh power management Mesh power management Mesh channel switching Mesh channel switching Three address, four address, and extended addressed frame formats Three address, four address, and extended addressed frame formats Mesh Path Selection and Forwarding Mesh Path Selection and Forwarding Interworking with external networks Interworking with external networks Intra/


Doc.: IEEE 802.11-00/419 Submission November 2000 David Halasz et alSlide 1 TGe Security Baseline David Halasz, Stuart Norman, Glen Zorn Cisco Systems,

Network / Enterprise Edge Authentication Server RADIUSRADIUS EAP Over Wireless (EAPOW) EAP-GSS with IAKERB EAP-GSS Over RADIUS PAE PAE KDCKDC doc.: IEEE 802.11-00/419 Submission November 2000 David Halasz et alSlide 26 Broadcast Key Distribution Broadcast key(s) gets securely delivered to the station via IEEE 802.1X EAPOL-Key. –EAPOL-Key message encrypted using session key obtained in/ implemented doc.: IEEE 802.11-00/419 Submission November 2000 David Halasz et alSlide 32 Long Term WEP Format 802.11 Hdr/


Wireless Sensor Systems: Security Implications for the Industrial Environment Dr. Peter L. Fuhr Chief Scientist RAE Systems, Sunnyvale, CA

Security, P. Fuhr 84 IEEE 802.15.4 standard Includes layers up to and including Link Layer Control –LLC is standardized in 802.1 Supports multiple network topologies including Star, Cluster Tree and Mesh IEEE 802.15.4 MAC IEEE 802.15.4 LLC IEEE 802.2 LLC, Type I IEEE 802.15.4 2400 MHz PHY IEEE/: Optional element in an H.323 conference. Gateways bridge H.323 conferences to other networks, communications protocols, and multimedia formats. Gateways are not required if connections to other networks or non-H/


Doc.: IEEE 802.11-12/0122r0 Submission January 2012 Dorothy Stanley, Aruba NetworksSlide 1 IEEE 802.11-IETF Liaison Report Date: 2012-01-18 Authors:

6lowpan-hc/ –RFC 6282, “Compression Format for IPv6 Datagrams over IEEE 802.15.4-Based Networks” published, see http://datatracker.ietf./ieee.org/802-ec/dcn/10/ec-10-0013-00-00EC-smart-grid- information-update-july-2010.pdf Updates [Jan 2012] –Updated: A Security Framework for Routing over Low Power and Lossy Networks, see http://datatracker.ietf.org/doc/draft-ietf-roll-security-framework/ http://datatracker.ietf.org/doc/draft-ietf-roll-security-framework/ –Of interest: Applicability of ROLL in AMI Networks/


Doc.: IEEE 802.11-16/0530r0 Report 802.11 May 2016 Closing Reports Date: 2016-05-20 Authors: Slide 1 May 2016 Adrian Stephens, Intel Corporation.

the end of sponsor ballot, turn these all into.wmf (windows meta file) format files (you can do this from visio using “save as”). Keep separate files/negotiated-ff-dhe/ –Updated: Elliptic Curve Cryptography (ECC) Cipher Suites for Transport Layer Security (TLS) Versions 1.2 and Earlier, see http://datatracker.ietf.org/doc/draft-ietf/achieving end to end Quality- of-Service (QoS) in a Proxy Mobile IPv6 (PMIPv6) domain where the access network is based on IEEE 802.11. RFC 7222 describes QoS negotiation between /


Advanced Computer Networks cs538, Spring 2016 Conclusion Klara Nahrstedt Department of Computer Science University of Illinois at Urbana-Champaign May.

Intercommunication”, IEEE Trans. On Communication, 1974 IP TCPUDP HTTPVoIPFTP P2PEmail...Web EthernetNTP... CopperFiberRadio... Gateways and IP Gateways sit at interface between networks...and speak an Internetworking protocol Internetwork Packet Format Addressing & Routing Original Routing is unspecified, but constrained! Hierarchical (network, host) address Route computed within network, hop-by-hop Early: 8 bits for network “This size seems sufficient for the foreseeable future.” Later: 32 bits in three/


IEEE Wireless Local Area Networks Bruce Kraemer

Communications IEEE Spectrum Proceedings of the IEEE IEEE Transactions on Mobile Computing Recently Published Papers re 802.11 Selfishness in Mesh Networks MAC Layer Misbehavior in Wireless Networks: Challenges and Solutions Designing VoIP Session Management over Interworked WLAN-3G Networks The need for Access Point Power Saving in Solar Powered WLAN MESH Networks Interworking of WLAN-UMTS Networks A Scalable Monitoring System for 802.11 Wireless Networks Toward Dependable Networking: Secure Location/


Wireless Local Area Networks Bruce Kraemer Chair V03

Communications IEEE Spectrum Proceedings of the IEEE IEEE Transactions on Mobile Computing Recently Published Papers re 802.11 Selfishness in Mesh Networks MAC Layer Misbehavior in Wireless Networks: Challenges and Solutions Designing VoIP Session Management over Interworked WLAN-3G Networks The need for Access Point Power Saving in Solar Powered WLAN MESH Networks Interworking of WLAN-UMTS Networks A Scalable Monitoring System for 802.11 Wireless Networks Toward Dependable Networking: Secure Location/


SYSTEMS Copyright © 2006 Q.E.D. Systems A Standards Update ISO, IEEE, ITU, and EPC By: Craig K. Harmon, Q.E.D. Systems President & CEO.

Seals SYSTEMS Copyright © 2006 Q.E.D. Systems Bolt Seal Security Tag Electronically secures ocean containers, air cargo ULD containers, trailers, Monitors presence and / (TEDS) Formats IEEE Std 1451.1-1999, Standard for a Smart Transducer Interface for Sensors and Actuators - Network Capable Application Processor (NCAP) Information Model IEEE Std 1451.2/ & Batteries Product Data Protection Active Tagging Reusable Transport Items Opt-In/ IP No Opt-In/ IP Retail Supply Chain FMCG/ AFF WG SYSTEMS Copyright © /


Wireless Personal Area Networks (WPANs)

in the 868 MHz band (European) Extremely low duty-cycle (<0.1%) IEEE 802.15.4 Basics 802.15.4 is a simple packet data protocol for lightweight wireless networks Channel Access is via Carrier Sense Multiple Access with collision avoidance and optional time slotting Message acknowledgement and an optional beacon structure Multi-level security/ fields Preamble (32 bits) – synchronization Start of packet delimiter (8 bits) – shall be formatted as “11100101” PHY header (8 bits) –PSDU length PSDU (0 to 127 bytes) /


doc.: IEEE

layer) 802.15.7r1 (Various) , doc.: IEEE 802.15- doc.: IEEE 802.15- March 2015 PHY format (Tentative) DC component of the color pulse fluctuation / dimming support Enhanced MAC Support for greater security 802.15.7r1 (Various) , doc.: IEEE 802.15- doc.: IEEE 802.15- March 2015 Proof of Concept/802.15.7r1 (Various) , March 2015 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Interference Issue in Visible Light Communications] Date Submitted: [January 23,/


WPAN IEEE 802.15.4 (ZigBee).

networking Security Low power consumption Low cost Designed to meet the demanding requirements of portable consumer imaging and multimedia applications ZigBee ZigBee - a specification set of high level communication protocols designed to use small, low power digital radios based on the IEEE 802.15.4 standard for wireless personal area networks/ Packet Error Rate in PSDU = 20 Bytes) RSSI Measurements Packet strength indication Clear channel assessment Dynamic channel selection PHY PDU Format (PPDU) PHY Packet/


WLAN Security Examining EAP and 802.1x. 802.1x works at Layer 2 to authentication and authorize devices on wireless access points.

you provide, you might get a particular IP address. PPP General Frame Format 802.1x Terminology 802.1x does introduce some terminology that we need to/in flexibility and in level of security, in the authentication methods, such as PAP. How did EAP get into the picture? Most corporate networks want to do more than simple usernames and passwords for secure/of messages for the above EAP variants. The IEEE 802.1x standard goes through all this for EAP-OTP in a couple of different scenarios (supplicant initiated /


Chapter 2 Getting Connected.

Media Access Control (MAC) control access to the shared Ethernet link implemented in hardware on the network adaptor Ethernet is a bit oriented framing protocol Frame format Preamble (64 bits) allows the receiver to synchronize with the signal a / IEEE 802.11i - Enhanced security (2004) IEEE 802.11j - Extensions for Japan (2004) IEEE 802.11-2007 - A new release of the standard that includes amendments a, b, d, e, g, h, i & j. (July 2007) IEEE 802.11k - Radio resource measurement enhancements (2008) IEEE/


Computer Networks with Internet Technology William Stallings Chapter 15 Local Area Networks.

Networks IEEE 802 IEEE 802.1 Higher layer LAN protocols IEEE 802.2 Logical link control IEEE 802.3 Ethernet IEEE 802.4 Token bus IEEE 802.5 Token Ring IEEE 802.6 Metropolitan Area Networks IEEE 802.7 Broadband LAN using Coaxial Cable IEEE 802.8 Fiber Optic TAG IEEE 802.9 Integrated Services LAN IEEE 802.10 Interoperable LAN Security IEEE/ retransmits unsuccessful frames Figure 15.3 LLC PDU in a Generic MAC Frame Format MAC Address 15.3 Ethernet Developed by Xerox IEEE 802.3 Classical Ethernet —10 Mbps —Bus /


Security+ Guide to Network Security Fundamentals, Fourth Edition Chapter 8 Wireless Network Security.

be performed in hardware because of its computationally intensive nature IEEE 802.1x authentication –Originally developed for wired networks –Provides greater degree of security by implementing port security –Blocks all traffic on a port-by-port basis until client is authenticated Security+ Guide to Network Security Fundamentals, Fourth Edition45 Wi-Fi Protected Access 2 (cont’d.) Extensible Authentication Protocol (EAP) –Framework for transporting authentication protocols –Defines message format –Uses/


Cryptography and Security Services: Mechanisms and Applications Manuel Mogollon M. Mogollon – 0 Session 11 Wireless Security.

).S 1 = CIPH K (Ctr 1 ).S m = CIPH K (Ctr m ). m=The number of blocks in the formatted payload, equal to Plen/128. Plen=The bit length of the payload. MSB s (X)=The bit string consisting of/specifications for wireless personal area networks (WPANs).” IEEE Std 802.11i – 2004, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications Amendment 6: Medium Access Control (MAC) Security Enhancements.” Karygiannis, T, Owens L. (2002). Wireless Network Security, 802.11. Bluetooth /


Computer Networks with Internet Technology William Stallings Chapter 15 Local Area Networks.

—Minimal processing Router more general purpose —Interconnect various LANs and WANs —see later Why Bridge? Reliability Performance Security Geography Functions of a Bridge Read all frames transmitted on one LAN and accept those address to any station / WAN connection Circles in diagram identify separate LAN subnetworks MAC broadcast frame limited to own subnetwork Figure 15.10 Typical Premises Network Configuration 100Mbps Fast Ethernet Use IEEE 802.3 MAC protocol and frame format 100BASE-X use physical/


Layer Layer 2-1 August 26, 2015. Application Layer Computer Networks Shahrood.

formats:  headers: fields giving information about data  data: information being communicated Most importantly: learned about protocols  control vs data messages  in-band, out-of-band  centralized vs. decentralized  stateless vs. stateful  reliable vs. unreliable msg transfer  “complexity at network edge”  security/, and H. Schulzrinne, "Adaptive Playout Mechanisms for Packetized Audio Applications in Wide- Area Networks," Proceeding IEEE Infocom 94. ftp://gaia.cs.umass.edu/pib/Ramj94:Adaptive.ps.Z/


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