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Networking (peer to peer) - PowerPoint Presentation Networking (peer to peer) - PowerPoint Presentation Presentation Transcript

  • Networking Computers Copyright © 2006 by James Hug
  • Types of Computer Networks
    • Mainframe/Terminal
      • 1960’s/70’s technology
      • Computation centralized
    • Server/Client
      • 1980s technology
      • Computation distributed with a central point of data storage
      • Large installations
    • Peer to Peer
      • 1990’s technology
      • Primarily for file sharing between computers
      • Limited to 10 computers (Microsoft limitation)
  • Typical Installation
  • Communication Systems
    • Ethernet
      • Open network system (most popular)
      • Low hardware costs
    • Token Ring
      • Closed network system - IBM
      • Limited to 4 Mbs or 16 Mbs (cable dependent)
    • ARCnet
      • Obsolete system
      • Limited to 15 Mbs
  • Communication Systems (conti.)
    • USB
      • Limited flexibility
      • 100/400 Mbs
      • Maximum cable length 16 foot
    • FireWire (IEEE 1394)
      • Limited flexibility
      • 480 Mbs
      • Maximum cable length 16 foot
  • Communication Systems (conti.)
    • AppleTalk
      • Closed network system - Apple Computer
      • Used primarily for their printer sharing
    • StarLan
      • Closed network system
    • HPNA
      • Phoneline network system
    • Power Line
    • Others
  • Ethernet Cable Systems
    • ThinNet (10Base2)
      • Coaxial cable (bus topology)
      • Half duplex communication
      • Limited to 10 Mbs
      • Limited to 900 foot total length
      • Limited installation flexibility
      • Rapidly becoming obsolete
  • Ethernet Systems (conti.)
    • Unshielded Twisted Pair (UTP)
      • Half or Full Duplex [10/100/1000BaseT(x)]
      • Speed is depended on the cable type
      • Cable Types
        • Cat-1 – Telephone (voice)
        • Cat-2 – 4 Mbs (Token Ring)
        • Cat-3 – 10 Mbs (Ethernet) – 300 foot max. length
        • Cat-4 – 20 Mbs (Token Ring)
        • Cat-5 – 100 Mbs (Ethernet) – 300 foot max. length
        • Cat-6 – 250 Mbs (Ethernet) – 300 foot max. length
  • Ethernet Systems (conti.)
    • Fiber Optic (FDDI)
      • 1000 Mbs (Ethernet limitation)
      • Same cable can share other transmission protocols (i.e. ATM, etc.) at the same time
      • Length limitation – miles (depended on hardware)
      • Used extensively to connect server farms together
  • Ethernet Systems (conti.)
    • Wireless
      • IEEE 802.11.a
        • 5.4 MHz – 54 Mbs – 100 foot line of sight
      • IEEE 802.11.b
        • 2.4 MHz – 11 Mbs – 300 foot line of sight
      • IEEE 802.11.g
        • 2.4 MHz – 54 Mbs – 300 foot line of sight
      • IEEE 802.11.gx
        • 2.4 MHz – 108 Mbs – 300 foot line of sight
  • Hardware Requirements
    • Network Interface Card (NIC)
      • Each computer must have one, either an installed or built onto the motherboard
      • It can be either wired or wireless
      • Must be compatible with cable system
      • I recommend 100BaseT(x) for wired systems
      • Cost (wired) ≈ $10.00 each
      • Cost (wireless) ≈ $60.00 each
  • Hardware Requirements (conti.)
    • Hub/Switch/Router/Wireless Access Point
      • For connecting two computers together – none is needed, but a “cross over” type cable is required
      • For networking several computers together (Peer to Peer) with no Internet connection – either a Hub/Switch/Wireless AP is needed
      • For networking several computers to a broadband connection (DSL/Cable) – a Router is needed
  • Hardware Requirements (conti.)
      • Hub/Switch/Router costs
        • Hub ≈ $10.00 - depended on number of ports
        • Switch ≈ $20.00 - depended on number of ports
        • Router (wired) ≈ $40.00 - depended on number of ports
        • Router (wireless 802.11.b) ≈ $50.00
        • Router (wireless 802.11.g/gx) ≈ $60.00
  • Hardware Requirements (conti.)
      • Cable cost
        • CAT-5/6 cable ≈ $0.20 per foot (with connectors affixed)
  • Typical Installation
  • Transmission Protocols
    • TCP/IP
      • Internet standard also used by Unix (Linux) and Windows 2000 & XP
    • NetBEUI
      • Used in peer to peer networks
      • With the introduction of Windows XP - no longer supported by Microsoft
    • IPX/SPX
      • Used in legacy Novell systems
  • Transmission Protocols (conti.)
    • Other systems
      • PPP – Dial up modem (POT)
      • PPPoE – Broadband (DSL & TV Cable)
      • PPTP – Virtual Private Networks
      • UPnP – Special devices (printer servers, household appliances, etc.)
      • AppleTalk - Used primarily for printer sharing
      • DLC – IBM mainframe/terminal
      • ATM – Teleco network interconnections
  • Software Requirements (Peer to Peer network)
    • DOS & Windows 3.1 systems
      • Third party software is required (Lantastic, etc.)
    • Windows 3.11 & 95 systems
      • Third party software is required (Lantastic, etc.)
    • Windows 95(OSR) & 98(x) systems
      • Included in operating system
    • Windows 2000 & XP systems
      • Included in operating system
  • Hardware Installation
    • Desktop Computers
      • Install NIC card in computer (if needed)
        • Be sure to unplug the power cord
        • Remove case cover
        • Install NIC card in an available slot
        • Replace case cover
    • Laptop computers
      • Some Laptop computers have a NIC built into them; if not, insert a NIC PCMCA card into the PCMCA slot and reboot the computer
  • Hardware Installation (Conti.)
    • Driver Installation
      • Run the software that came with the NIC card
      • If no software came with the NIC card, do:
        • Click right mouse button on “My Computer”
        • Click left mouse button on “Properties”
        • Windows 98(x) – click left mouse button on “Device Manager”
        • Windows 2000 & XP – click left mouse button on “Hardware” & click left mouse button on “Device Manager”
  • Hardware Installation (Conti.)
    • Driver Installation (conti.)
        • Run the “Add Hardware Manager Wizard”
        • Or manually install the device driver
      • Verify in the “Device Manager” that the driver is installed properly and enabled
        • There should be no yellow “explanation marks” ( ! ) on any of the devices
        • Look in the properties of the device, it will tell you if the device is enabled
  • Connection Software (Services)
    • Internet Connection (Broadband)
      • Windows 98(x) systems
        • In “Settings” > “Control Panel” > “Network” verify that the following are installed and install if missing:
          • Client for Microsoft Networks
          • Microsoft Family Logon
          • File and printer sharing for Microsoft Networks
          • NETBEUI -> Dial up Adapter
          • NETBEUI -> NIC adapter
          • TCP/IP -> Dial up Adapter
          • TCP/IP -> NIC adapter
        • Select “Microsoft Family Logon” as Primary Network Logon
        • In “File and Print Sharing” tab check the appropriate boxes
  • Connection Software (Services)
    • Internet Connection (Broadband)
      • Windows 2000 & XP systems
        • If you decide to convert all of your computers on your LAN to Microsoft’s new standard (NETBIOS over TCP/IP) do the following:
          • In “My Network places” screen under “Network Tasks” run the “Set up a small home or office network
          • Make a “Network Install” floppy disk and run it on your other computers
        • If you decide to stay with Microsoft’s discontinued NETBEUI protocol find and install the NETBEUI protocol in your “Local Network Connection Properties” panel
  • Finding & Installing NetBEUI
    • On the Window XP installation CD-ROM in the “VALUEADDMSFTNETBEUI” folder
        • 1. Copy the “NBF.SYS” file to the hard disk’s folder “WINDOWSSYSTEMSDRIVERS”
        • 2. Copy the “NETNBF.INF” file to the hard disk’s folder “WINDOWSINF”
    • In “Local Network Connection Properties” install the NetBEUI protocol for each NIC device
  • Wireless Network Security
    • Reconfigure the router:
      • Change the router name and password
      • Rename the wireless network name
      • Turn off SSID broadcasting
      • Setup MAC filters for only permitted wireless computers
      • Use encryption (WEP, WPA etc.)
  • How To Web Site
    • My best known help web site is PC911
    • http://pcnineoneone.com/howto/hmnetwk1.html
    • Good Luck and Happy Networking
    • James Hug