Presentation Slide For IT Student - IPv4 And Addressing

Roshan Karki Unknown

IPv4 and Addressing

Introduction


Your introduction here

Objectives


Learn about IP address
Learn about IP allocation
Concept of public and private IP
Concept of loopback IP
Concept of Network and Broadcast ID

Learn about IP address


IP (Internet protocol) is numeric identification of  device in computer network.
Every device in computer network has a unique IP address.
IP is 32 bit long.
Binary but represented as decimal
Separated by '.' in four octets.
Example of IP address
00000100.00000010.00000010.00000010
is an example of IP address in binary form.
Notice '.' in every octet
4.2.2.2 is the same IP address in human readable decimal form. (dot-decimal notation)
116.197.164.1, 202.63.242.6, 10.10.5.211 are other examples.
74.125.45.100 is one of the IP of google.com

IP allocation


Originally, an IP address was divided into two parts:
Host and Network
Only 256 Network possible with this allocation
To overcome this problem IP allocated as classful Network
Allocated as CIDR
Classful Network
IP address divided into five class.
Class A,B,C,D and E
Each class defines size of the network and type(unicast or multicast).
In each network there is 2N-2 host address available where N is number of bits for host part.
IP with all bits 0 and all bits 1 can't be used for hosts.
Replace by CIDR from 1993.

CIDR


Classless Inter-Domain Routing
Main problem of classful network - too small for most enterprises, and the next larger block contained 65,536 addresses—too large to be used efficiently by even large organizations
Uses CIDR notation to specify IP address.
134.13.1.0/21 example of CIDR notation

Public and Private IP


Private IP addresses are unroutable address
Private IP address are not globally assigned
Private IP addresses created due to shortage of public IP
One IP range in class A,B and C separated as private IP
Private IP can't be used in Internet
Private IP
Localhost
address range 127.0.0.0–127.255.255.255
Packets sent to this address returns to the same interface
Called as loopback

Network and Broadcast ID


IP address with all bits zero in the host part is the network ID.
For example 192.168.0.0 is network ID for /24 network.
IP address with all bits one in the host part is the broadcast ID for the network.
For example 192.168.0.255 is broadcast ID for /24 network.
Broadcast ID used for sending packets to all device under the network.

Conclusion


We are running out of address in IPv4
IPnG or Ipv6 is currently being implemented to solve this issue.
IPv4 is 32 bit whilst IPv6 is 128 bit.
IPv6 is supported on Linux, Mac OS and Windows.
IP allocated as CIDR.
Private IP can't be used in Internet.

Question

Download the ppt slides for IPv4 And Addressing presentation from here.

Comments

Post a Comment

Comments are moderated. No spam please.

Popular posts from this blog

Perm Root HTC Desire Gingerbread 2.3.3

Roshan Karki Anonymous
This guide is for permanently rooting HTC Desire running stock Android Gingerbread 2.3.3 . If you want to temp root then you can follow this guide. Before starting please be aware that problems while rooting can brick your phone. While the process in this guide is relatively simple and easy, I can't be held responsible for whatever happens. Enable USB debugging in your phone by going to  Settings  ->  Applications  ->  Development . Plug in your phone to the computer. Go to Revolutionary website  http://revolutionary.io/  . From there download revolutionary software. Leave this browser tab opened. We need to generate Serial key later. Extract the downloaded software on your computer and run the software with root permission. $sudo ./revolutionary It will tell you your serial number and ask for the beta key. Copy the serial number and go to the browser tab we left open while downloading the software. Put the serial key there, select your phone, hboot version and g
Read more

[Solved] invalid partition table on /dev/sda -- wrong signature 0.

Roshan Karki Anonymous
I was trying to use Disk Utility program to edit some partition in my system. But I got a strange error message "invalid partition table on /dev/sda -- wrong signature 0." and couldn't proceed. So I tried with gparted(Gnome Partition Editor). The result wasn't any different. Today while clean installing Ubuntu 11.10 Oneiric Ocelot, the installer said that there was no partition in my disk. While trying live CD, I could find all the partition and read data. If you also encounter any of the above problem, simple run fdisk by sudo fdisk /dev/sda press p and then press w . You'll see a message "The partition table has been altered!". Now try running the partition editor or the installer again.
Read more

Adobe Stand Alone Flash Player for Linux

Roshan Karki Anonymous
Image
Adobe stand alone flash player for Linux is available. Most of us only need flash plugin for browser to view swf. But sometimes we or most of the times developer wishes for the availability of stand alone flash player for Linux. Stand alone flash player means that you don't need anything to run swf other than the player itself. Yes, you don't need browser or any media player. Get it from http://www.adobe.com/support/flashplayer/downloads.html or download the version 10 directly from http://download.macromedia.com/pub/flashplayer/updaters/10/flash_player_10_linux_dev.tar.gz Not only that you can create self running binaries from the stand alone player.
Read more