Understanding IP Addressing


Understanding IP Addressing:

Everything You Ever Wanted To Know
The Internet continues to grow at a phenomenal rate. This is reflected in
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ABSTRACT

Internet is made of a combination of Networks connected by Routers or Gateways. When a Source communicates with Destination, the packets may travel from one physical Network to another through Routers and Gateways. Therefore we need identification system to identify the source and destination. This can be done with a IP Address in TCP/IP Networks. An IP Address is a 32 bit binary address implemented in software that uniquely and universally defines Hos ....etc

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hi . . . . pls gv me report on unique p mail addressing system.
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Abstract
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IP Addresses:Classful Addressing
RULE:
If a protocol uses N bits to define an address, the address space is 2N because each bit can have two different values (0 and 1)and N bits can have 2N values
Network Addresses
The network address is the first address
The network address defines the network to the rest of the Internet
Given the network address, we can find the class of the address, the block, and the range of the addresses in the block
In classful addressing, the network address (the first address i ....etc

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Abstract—
GSM bears numerous security vulnerabilities.
Although GSM’s architecture is designed in such a way to
provide various security features like authentication, data/
signaling confidentiality, and secrecy of a user yet the GSM
channel is susceptible to replay, interleaving and man-in-themiddle
attacks.
The GSM speech service is secure up to the point where speech
enters the core network. However to achieve end-to-end security
it is desired that the GSM subscriber, not the network operator
controls the encryption on ....etc

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Efficient Addressing


How to Make Routing Scale



Flat (Ethernet) versus Hierarchical (Internet) Addresses
-All hosts attached to same network have same network address
Problem: inefficient use of Hierarchical Address Space
-class C with 2 hosts (2/255 = 0.78% efficient)
- class B with 256 hosts (256/65535 = 0.39% efficient)
Problem: still Too Many Networks
- routing tables do not scale
-Big tables make routers expensive
-route p ....etc

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Supernetting and Classless Addressing



Supernetting

Classes A and B are almost depleted.
Class C addresses are still available.

What if a company needs a network larger than 254 hosts?

! Give the company several consecutive blocks
of C addresses and treat these as a single supernetwork


Rules:

The number of blocks must be a power of 2

The blocks must be contiguous in the address
space (no gaps between the blocks).

The third byt ....etc

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8086 Data Addressing Modes
Session Objectives
Classify different addressing modes of 8086.
List the different data addressing modes.
Explain the operation of each data addressing mode.
Select the appropriate addressing mode to accomplish simple data
transfer operations.
Teaching Learning Material
Board
Presentations
The addressing modes of 8085 processor are:

Immediate Addressing Mode
Direct Addressing Mode
Indirect Addressing Mode
Register Addressing Mode
Implied Addressing Mode
Classification of Addressing ....etc

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