Subnet/address mask, Computer Networking

To use a subnet or classless address, table under routers and hosts that have address must keep two pieces of information with every address: the 32-bit address itself and another 32-bit number that specifies the boundary that is called as the Subnet Mask or Address Mask.

Suppose

D = Destination Address

(A, M)= (32-bit IP Address, 32-bit Address Mask)

 

 A = = (D & M)

Now as an example take a 32-bit mask:

11111111 11111111 00000000 00000000

Which can be denoted in dotted decimal number as 255.255.0.0.

Consider a network prefix:

 10000000 00010010 00000000 00000000

 

Which can be shown in dotted decimal number as 128.10.0.0.

Consider a destination address: 128.10.2.3

That has Binary equivalent as:

 10000000 00010010 00000010 00000011

 

A logical 'and' between M and D gives the binary result as:

 10000000 00100010 00000000 00000000

 

Which is similar to prefix 128.10.0.0.

Posted Date: 7/31/2012 8:44:21 AM | Location : United States







Related Discussions:- Subnet/address mask, Assignment Help, Ask Question on Subnet/address mask, Get Answer, Expert's Help, Subnet/address mask Discussions

Write discussion on Subnet/address mask
Your posts are moderated
Related Questions
Question 1: a. Differentiate between the several types of switching networks together with illustration. b. With the help of a diagram explain the two modes of operation un


Role of Software in Intranet For an Intranet to be successful, it must have strong software support. In this section, a brief description of the operating system, groupware an

What are the most typical functional units of the Client/Server applications? Ans) typical functional units of the Client/Server applications User interface Business Logic

- Lost as well as delayed ACKs - Bidirectional transmission both side needs both sending and receiving windows Note: In selective repeat ARQ the size of the sender and rece

i) Identify at least two items at every site that needs upgrading [2 Marks] ii) What type of WAN connection (link) might you use to connect the three sites to each other?


Computer Networks 1. Write about different network structures in use. 2. Explain the architecture and usage of ISDN. 3. Describe the concept of framing in Data Link Layer

The client side building block moves towards the client side of the application. The server side building block moves towards the server side of the application.

a) An Introduction/Overview of Network Security issues. b) A Risk Assessment  analysis- to include:             Assets                                                         T