IP ADDRESS & ITS BASIC ONLY

IP ADDRESS & ITS BASIC ONLY

What is IP address?

--- > internet protocol address is unique logical address assigned to every node(machine) uniquely.

--->  identify & communicate that node.

--> it is the s/w address


Classification on the basis of -->

1. VERSION-->

 2. NETWORK--->

• Internal/private/local network

 

• external/public/global 

 

• static & dynamic ip address

 

• a.static  ip address-->it remain same forever
  
  
  
  
  b.dynamic  ip address changes on every reconnection.
  
  
  
  
  Note-  DHCP server provide the external IP address.
  
  
  
  
  1. Internal IP address & external IP address

               ---->Internal IP address is used for the internal /local communication only. it is not used for the out side world communication.

 Eg -if router placed in the home,then those device access the wifi  of that particular router  have the  run on the internal ip address. Which is provided by that router.

                    

                --->External IP address is used for the internet communication.

Eg- Lan connected to the router ,provide the external ip address to the router only.

              2.NAT - (Network Address Translation)

--->

n/w  address translation is a process using which a collection of the nodes(n/w) can be assign a single ip address called external IP address.& nodes can be communicate with each other using their Internal IP address,it has both financial & security benefits.

--->

In a crux:: one (single) ip address is used to provide internet access to all the device in the network,which cut the cost  with huge number & also anybody from outside the private network can not be connect to the internal device directly which adds the layer of the security.

--->

it  is also called a process that creates a sub-network of network.(subnetting).

                3.RESERVED IP ADDRESS-

 

Note-

127.0.0.1 ------------>loop back IP address

192.168.255.255 ------>to send packet broadcasting use

192.168.255.255 ------>broadcast the subnet 2 or more.

Default gateway address--->shows the router ip address

                4.MAC ADDRESS-

---->it is a 6 byte hexadecimal address,with 6 parts

---->separated by ‘:’ or ‘-‘  & each part is hexadecimal between 00-ff

---->eg-2c:b0:5d:d7:8f:2a

----->first three parts are the manufacture parts & the last 3 parts are the unique no.