Network Security (Packet Sniffing) Outline Packet sniffing Sniffing in Hub Sniffing in Switch ARP (Address Resolution Protocol) ARP Spoofing Conclusion Packet Sniffing Overview Process of monitoring a network to gather information that may be useful Use by both “good guys” and “bad guys” Sniffing in Hub A sends a packet to D All stations will receive the packet including the Sniffer station A B Sniffer Hub C D Sniffing in
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COMPUTER NETWORKS 4TH MARCH 2012 Examination Paper Answer ALL questions. Clearly cross out surplus answers. Time: 2 hours Any reference material brought into the examination room must be handed to the invigilator before the start of the examination. ANSWER ALL QUESTIONS Marks QUESTION 1 a) State FOUR (4) principles underpinning the Open Systems Interconnection (OSI) Reference Model. b) Describe the purpose of the physical layer of the OSI Reference Model. c) State THREE (3) elements
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1) Encode IP address 10.20.30.40 in TLV format Solution: 01000000 00000100 00001010000101000001111000101000 2) A network manager discovers that a network component is performing poorly and issues an order to the technician to replace it. Which MIB group contains this information for the technician to find out the physical location of the component? Solution: SysLocation in System group \\8 - Net-MGM-5.ppt 3) TCP is a connection-oriented protocol and UDP is a connectionless protocol
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Assignment 2: LAN with Two Subnets Gabriel Jerez Strayer University: Asynchronous CIS408: Network Infrastructure Planning October 28‚ 2012 A LAN consisting of two subnets with a total of 50 users‚ each subnet consisting of 25 users‚ a domain controller‚ and a switch must be connected using the appropriate networking equipment. In my design I decided to use a Cisco 2900 Series Router to connect the two subnets (Cisco ‚ 2012). The router has both routing
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Review Questions 1. An IPv6 address is made up of how many bits? An IPv6 address is made up of 128 bits. 2. The subnet mask of an IP address does which of the following? The subnet mask defines network and host portions of an IP address. 3. If a protocol is routable‚ which TCP/IP layer does it operate at? A routable protocol operates at the Internetwork layer of TCP/IP. 4. Which of the following is a private IP address and can’t be routed across the Internet? The IP address 172.19
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center to the store and also within the store. Since transportation can be as much as one-half to two-thirds of the total cost of distributing product it only makes sense to drive is in as many efficiencies into your transportation network as you possibly can. The 1st strategy is to limit the margin that would have to be paid to a third-party providing that service. The 2nd strategy is controlling the fleet my company can control the quality and timing of the service to move the freight
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Not many great novels were produced during the post World War II era. Perhaps the greatest novel published was J. D. Salinger’s The Catcher in the Rye. This book‚ just like all other great works‚ was met by scathing criticism and unyielding praise. Many literary critics marveled at Salinger’s genius use of language to make Holden Caulfield‚ the main character‚ unbelievably realistic. Through Holden’s thoughts and dialogues‚ Salinger successfully created a teenage boy. Because of that The Catcher
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www.teletronics.com Introducing Teletronics’ TT™Series TT™5800 FCC ID: MFMTT5800 High Power 802.11a Bridge Item# 11-144i (AP Mode) Item# 11-146i (Bridge Mode) High Power 250mW 802.11b/g Bridge Features Web & SNMP based Management EZManager Adjustable Transmit (TX) Power VLAN Transparent Support Intra-BSS Traffic Blocking (Layer 2 Isolation) Configurable ACK timeout for long distance Turbo-mode for high data rate (Optional) Ruggedized waterproof and all weather enclosure WDS available
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Network System Administrator Network Management Definition of Network Management History of Network Management. My previous knowledge within the IT field and network administrator is one I may pursue. Everything that makes a network function Hardware The network operating systems Understanding the need‚ process and the responsibilities involved of a Network Administrator This is a position that is consider an IT field and is very important to business. The position is unique
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Instructions for successfully completing Packet Tracer iLabs and iLab Reports: 1. Make sure that you understand the objective of the lab(s) and the requirements for successfully performing them. 2. Use this Lab Report template for all of your labs. Do not turn in separate documents for each lab or create your own document! Each lab is easily identified within this document. Note: It is a good idea to read over this template before performing your labs‚ so that you know what to expect
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