Introduction To IP Addressing And Networking

The term IP stands for Internet Protocol. This protocol is essential for transferring data from one device to another. When data is sent or received on a network, basically that data gets divided into small packets and these packets contain two things – one is the sender’s address and the other is the receiver’s address. The TCP is responsible for putting each piece of packet into a right sequence so that it can be delivered properly to the desired host.

There are a few things that need to be discussed about IP:

IP address has two versions-

IPV4 – IP version 4 is a 32 bit binary address which gets divided into four octets in terms of dots.

IPV4 has 5 classes namely – Class A, Class B, Class C, Class D, Class E.

Class A: Class A addresses have an IP address in which the first octet is between 1 to 126 and the default subnet mask is . In this class of IP the 1st octet represents network ID and the last three 3 octets represent host ID. Each octet can contain 256 possible values (0to 255) which mean class A supports 16,777,216 hosts on the network (256*256*256) but the number of valid hosts are 16,777,214.

127 –Loop back address is used for self-test.

Class B: Class B has an IP address in which the value of the first octet is between 128 to 191 and the default subnet mask is . In this class of IP first two octets represents network ID and the last two represents host ID. That means there can be 256*256 = 65,536 hosts on the network but the valid hosts will be 65,534.

Class C:  The range of class C IP starts from 192 to 223 and the default subnet mask is . Accordingly the first three octets of this class represents network ID and the last represents host ID. Having only one octet as the host ID means a class C address can support only (256 to 2) 254 hosts on a network.

Class D:  Class D (range 224 to 239) addresses are specially used for multicasting. It means if a particular data needs to be sent to multiple systems simultaneously then it can be done by just sending it to the multicast address and the message will be conveyed to its registered hosts.

Class E This type of address is used for experimental purpose so it is not assigned to networks (240 to 255).

When IPV4 was designed in 1981, no one actually anticipated the growth of internet and the security related issues with it, as a result of at present more options are being looked for like IPV6. Compared to IPV4, IPV6 has 128bit address space which supports a total of 2128 (3.4×1038) addresses and on a security note IPV6 has IPSec as a pre-defined security feature. This type of address is represented in hexadecimals like 2001:DB8:0:0:22:F376:FF3B:AC94.


  1. Excellent blog you have here but I was curious if you knew of any message boards that cover the same topics discussed in this
    article? I’d really love to be a part of online community where I can get opinions from other
    knowledgeable individuals that share the same interest.
    If you have any suggestions, please let me know. Thank you!

  2. hello!,I love your writing very so much! share we keep up a correspondence extra approximately
    your post on AOL? I need a specialist on this house to solve my problem.
    May be that is you! Looking forward to see you.

  3. No matter if some one searches for his essential thing, thus he/she wants to be available that in detail, thus that thing is maintained over here.

  4.' Leatrice says:

    As Charlie Sheen says, this article is “W!NNINGI”

  5.' Ivalene says:

    We need a lot more ingsthis like this!

  6. It’s appropriate time to make a few plans for
    the long run and it’s time to be happy. I’ve learn this post and if
    I may just I desire to counsel you some fascinating things
    or advice. Perhaps you could write next articles regarding this
    article. I wish to learn even more issues approximately it!

  7. I loved аs muсh as you’ll receive carried out right herе.

    The skstch іs tasteful, your authored material stylish.

    nonetɦeless, you command get ǥot an nervousness oveг tɦat you wisɦ be delovering thе following.
    unwell unquestionably come furtһer formeгly again as exɑctly tɦе samе nearly vеry
    often injside casе yoᥙ shield this increase.

  8. I’d want to learn about more approaches to make gems however, therefore
    please inform me by leaving a comment.

  9.' phim hay says:

    Amazing! Its in fact amazing piece of writing, I have got much clear idea on the topic of from this

  10. That is terrific and probably it would be most effective for
    everybody to send off a complete set of ID
    prior to placing a bet at any web page, regardless of their terms.

  11. I’ve been exploring for a bit for any high quality articles or weblog posts
    in this kind of house . Exploring in Yahoo I finally
    stumbled upon this site. Studying this information So
    i’m satisfied to show that I’ve an incredibly good uncanny feeling
    I discovered just what I needed. I most undoubtedly will make certain to don?t put out of your mind this web site and provides it
    a glance on a relentless basis.

  12.' BongSKatoh says:

    Simply wish to say your article is as astounding. The clearness in your post is simply spectacular
    and i could assume you are an expert on this subject. Well with
    your permission let me to grab your feed to keep up to date with forthcoming post.

    Thanks a million and please carry on the gratifying work.

  13. Hello! I could have sworn I’ve been to this website before but after browsing through
    some of the post I realized it’s new to me. Nonetheless, I’m definitely glad I found it
    and I’ll be book-marking and checking back frequently!

  14. We are a group of volunteers and opening a new scheme in our community.

    Your web site offered us with helpful information to work on.
    You have performed a formidable task and our whole neighborhood shall be
    thankful to you.

  15. Hello There. I discovered your weblog the use of msn. This is a
    very well written article. I will be sure to bookmark it and return to read more of your helpful info.
    Thanks for the post. I will definitely comeback.

  16.' Bebe says:

    Way cool! Some extremely valid points! I appreciate you penning this post and the rest of the site is extremely good.

  17. Have you ever thought about adding a little bit
    more than just your articles? I mean, what you say is important and all.
    Nevertheless think about if you added some great visuals or video clips to
    give your posts more, “pop”! Your content is excellent but with pics and videos, this blog could definitely be one of the greatest in its field.
    Fantastic blog!

Leave a Reply to herbal remedies to treat eye Diseases