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Difference between hostid and netid in IP address


In classful addressing, an IP address of class A,B and C is divided into
two parts : netid and hostid.

The netid and hostid are of varying lengths, depending on the class of the address.

Netid: The part of an IP address that identifies the network.
Hostid: The part of an IP address that identifies a host in a network.

Class A: One byte netid three bytes host id
Class B: Two bytes netid Two bytes host id
Class C: Three bytes netid One byte host id

Example:
1.      IP address: 84.42.58.11
Binary Notation: 01010100 00101010 00111010 00001011
It is a class A IP address.
The network address /netid is 84.0.0.0
The host addresses /hostid is 0.42.58.11
2.     IP address: 144.62.12.9
It is a class B IP address.
The network address /netid is 144.62.0.0
The host addresses /hostid is 0.0.12.9



Location: India

Comments

  1. Unknown2 May 2013 at 14:16

    Thanks!

    ReplyDelete
  2. Pankaj21 July 2013 at 07:58

    its really very helpful for us.

    ReplyDelete
  3. Anonymous8 January 2014 at 04:43

    Cool, but you didn't mention the Class C IP in the example. :|

    ReplyDelete
  4. Unknown27 January 2014 at 09:16

    fantastic job done .........so understoodable
    i think there is something which is called common sense "Anonymous"

    ReplyDelete
  5. Unknown13 May 2014 at 01:52

    thank u

    ReplyDelete
  6. Unknown2 June 2014 at 11:11

    example of class c is required

    ReplyDelete
  7. Trần Hoài Thương26 September 2014 at 07:46

    you can write like this: why not?
    netid:84.42.0.0
    hostid:0.0.58.11

    ReplyDelete
    Replies
    1. Anonymous6 December 2014 at 21:12

      We can write if its a class B ip. For class C it would've been netid : 84.42.58.0 and hostid : 0.0.0.11

      Delete
  8. Unknown15 December 2014 at 06:03

    i clearly understand it

    ReplyDelete
  9. Anonymous18 December 2014 at 08:20

    Thank You! It's realy helpful! :)

    ReplyDelete
  10. Amol Kale26 December 2014 at 20:55

    thank u so much

    ReplyDelete
  11. Unknown29 April 2015 at 03:35

    thanks a lot.
    Very clear and in understadable manner. :)

    ReplyDelete
  12. Unknown29 April 2015 at 03:46

    FOR CLASS C:-
    ip address : 210.50.23.1
    Binary Notation : 11010010 00110010 00010111 00000001
    (210 is between 192-223, so its class C. ok)
    Netid : 210.50.23.0
    Hostid : 0.0.0.1

    ReplyDelete
  13. Unknown29 April 2015 at 03:59

    FOR CLASS C:-
    ip address : 210.50.23.1
    Binary Notation : 11010010 00110010 00010111 00000001
    (210 is between 192-223, so its class C. ok)
    Netid : 210.50.23.0
    Hostid : 0.0.0.1

    ReplyDelete
  14. Anonymous2 June 2015 at 05:01

    Thanks

    ReplyDelete
  15. Unknown15 November 2015 at 01:17

    Thanks ..easy to understand

    ReplyDelete
  16. Unknown21 December 2015 at 08:22

    Netid 172.16
    Hostid 2.11
    Ip address 172.16.2.11
    Network address 172.16.0.0
    Host address 0.0.2.11

    I remumber that , i am not sure

    ReplyDelete
  17. Unknown16 October 2016 at 04:18

    thanks......its very easy to understand

    ReplyDelete
  18. Rajnish Pandey6 November 2016 at 22:18

    Thanks..... So much

    ReplyDelete
  19. Unknown5 December 2016 at 06:02

    Thanks ;

    ReplyDelete
  20. Unknown23 April 2017 at 21:27

    nice easy to undestand

    ReplyDelete
  21. Unknown14 December 2017 at 17:11

    Class A: 0.0.0.0 -> 127.255.255.255
    Class B: 128.0.0.0 -> 191.255.255.255
    Class C: 192.0.0.0 -> 223.255.255.255

    ReplyDelete
  22. Rapheal Chukwumah29 January 2018 at 02:32

    This comment has been removed by the author.

    ReplyDelete
  23. Cyberlord WizardX13 March 2018 at 13:34

    good bro i rep http://9jawibe.xtgem.com

    ReplyDelete
  24. Unknown22 February 2019 at 21:35

    Thanks so much really helpful.

    ReplyDelete
  25. Unknown9 March 2019 at 12:55

    Need more lessons concerning networking and IP address

    ReplyDelete
  26. Unknown14 November 2019 at 09:03

    Thank u nice

    Explanation

    ReplyDelete
  27. Valentin Bogatu9 March 2020 at 22:52

    Awesome :)

    ReplyDelete
  28. baldivya mitra12 April 2020 at 09:34

    Really easy to understand brother

    ReplyDelete
  29. Dusky12 March 2021 at 02:56

    Thank you

    ReplyDelete
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    ReplyDelete
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