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WELCOME TO OUR PRESENTATION

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This presentation is supposed to last around 70 minutes. ... stanbul: Pusula Yay nc l k ve leti im San. ve Tic. Ltd. ti., 2005 Baycan, Tolga. – PowerPoint PPT presentation

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Title: WELCOME TO OUR PRESENTATION


1
WELCOMETO OUR PRESENTATION
2
Introduction
  • This presentation is presented by
  • Bilge Akdag
  • M.Mert Kisman
  • Get ready for the journey of IP Routing.
  • This presentation is supposed to last around 70
    minutes. (Hopefully ?)

3
Topics of Discussion 1/2
  • IP Addresses
  • IP Versions
  • IP Version 4 (Currently in use)
  • IP Version 6 (Being developed for future needs)
  • Examples
  • Limits
  • Private IP Addresses
  • Dynamic / Static IP Addresses

4
Topics of Discussion 2/2
  • Routing
  • Routers
  • Working principles
  • Hardware Routers
  • Software Routers
  • Pronunciation
  • Routing Tables
  • Topologies

5
IP (Internet Protocol) Address
  • Unique number on a computer network
  • Required for identification on a wide area
    network
  • Also required for communication on WAN

6
IP Versions
  • IP Version 4
  • Currently being used
  • IP Version 6
  • Is being developed for the future

7
IP Version 4
  • 32 bit numbers
  • Ex 139.179.40.5
  • _ _ _ . _ _ _ . _ _ _ . _ _ _ 4 x 8 bits each
  • 128 64 32 16 8 4 2 1 Max255
  • 27 26 25 24 23 22 21 20
  • Biggest IP number 255.255.255.255
  • 4.294.967.296 possible unique addresses
  • 18 Million for private networks

8
IP Version 6
  • IP Version 4 will not be enough in the near
    future.
  • IP Version 6 is being developed to replace IP
    Version 4.
  • Consists of 128bits numbers while IP4 is 32bits
  • Faster routing will be accomplished.
  • Uses simpler header structure.

9
Private IP Addresses
  • Some IP Addresses are reserved to be used in
    private networks.
  • 10.0.0.0 10.255.255.255 16777215 Numbers
  • 172.16.0.0 172.31.255.255 1048576 Numbers
  • 192.168.0.0 192.168.255.255 65535 Numbers
  • These ip ranges are for only Private networking
  • Not for the Internet
  • Last one is used mostly on routers.

10
Dynamic / Static IPs
  • Two methods for assigning IP addresses
  • Dynamic
  • IP Address changes by time to time
  • Non-permanent devices
  • Ex Home users
  • Allocation requires a DHCP server
  • DHCP (Dynamic Host Configuration Protocol)
  • Assigns addresses randomly
  • Assigns a lease time (How long that ip address
    is valid for that machine)

11
Dynamic / Static IPs
  • Static
  • IP Address given to a machine never changes
  • Semi-permanent devices
  • Ex Servers
  • Mostly costs extra

12
ROUTING
  • Choosing the path to send the data
  • Passing of packets through routers
  • Routing is done by routing tables within the
    routers.
  • Routing tables keep best routes to a group of
    addresses.
  • Routing occurs at Network Layer.

13
ROUTERS
  • A device to connect two or more networks to each
    other.
  • Forwards data packets from one network to
    another.
  • Uses routing tables to accomplish the routing
    job.

14
ROUTERS How does it work?
15
Hardware Routers - Wired
  • 8 ports for connecting computers
  • EtherFast (100Mbps)
  • Around 75 New Liras

16
Hardware Routers - Wired
  • 4 ports for connecting computers
  • Gigabit Ethernet (1000 Mbps)
  • Around 200 New Liras

17
Hardware Routers - Wireless
  • 4 ports for connecting via cable
  • Max. of 254 devices can be connected
  • 54Mbps Wireless-G (802.11g)
  • Around 110 New Liras

18
Hardware Routers - Wireless
  • State of art wireless router
  • (Kick Ass router ?)
  • 4 ports for connecting via cable
  • 3 Wireless-G devices in one box.
  • 3 times more range
  • 10 times faster than a regular Wireless-G device
  • Not yet available in Turkey

19
Hardware Routers
  • Routers sometimes combined with
  • ADSL Modems
  • Most of the routers on market in Turkey
  • Cable Modems
  • Also used to connect more than one computer to
    the internet with current ADSL/Cable modem
    combined versions

20
Software Routers
  • Routing can be done without any hardware
  • Software routing programs are available
  • Many Linux distributions contain IP Routing
    software.
  • Instead of hardware router
  • You can install routing software on your computer
  • Or on a spare computer

21
Software Routers
  • Can be done using Microsoft Windows XP
  • Known as Internet Connection Sharing
  • Already working without your knowledge!!
  • Check it out on task manager. alg.exe
  • Stands for Application Layer Gateway
  • It is used to connect more than one computers to
    the internet through the main computer.

22
Pronunciation
  • Many people pronounce it differently.
  • Everybody thinks their way is correct.
  • In reality
  • British speakers pronounce it as RUTIR
  • American speakers tend to call it RAUTIR
  • American way sounds simply Cooler

23
Routing Tables
  • A record of best routes to various networks
  • Placed within the routers
  • Construction of routing tables very important

24
Routing Tables
  • A general view of a routing table

25
Routing Tables
  • For Win2k/XP route print ltEntergt

26
Routing Tables
  • Routing tables are set dynamically or statically.
  • Static routing tables used in small networks
  • Requires little configuration on the router
  • Complex networks use both static and dynamic
    routing tables.

27
Routing Tables
  • Dynamic routing tables
  • Uses different network topologies.
  • Construction of dynamic routing tables is a very
    complex job.
  • Not everyone has the knowledge of its complex
    algorithms.

28
Topologies
  • Pattern of links connecting pairs of nodes.
  • Each node has 1 or more links to other nodes.
  • Many different topologies can be connected
    together (Hybrids) according to needs.

29
Topologies
  • Some of the main topologies

30
Conclusion
  • Internet can not exist without routing
  • Accessing outside of your LAN requires routers.
  • Routing occurs at Network Layer of OSI layers.

31
RESOURCES (In MLA Format)
  • Özbilen, Alper. Bilgisayar Aglari ve Güvenligi.
    Istanbul Pusula Yayincilik ve Iletisim San. ve
    Tic. Ltd. Sti., 2005
  • Baycan, Tolga. CTP204 Class Notes. Bilkent
    University, Ankara. 2006
  • Routing. Wikipedia. 20th April 2006. Wikimedia
    Foundation, Inc. lthttp//en.wikipedia.org/wiki/Rou
    tinggt
  • Linksys. 20th April 2006. Cisco Systems.
    lthttp//www.linksys.comgt

32
THANK YOUFor Listening!Questions are welcomed
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