What is internet protocol ( IP ) , type of internet protocol?

Internet Protocol 

What is Internet Protocol(IP) ?

  • IP is connectionless and unreliable protocol.
  • it is the principal communication protocol in the IP suite for relaying datagrams across network boundaries.
  • IP has the task of delivering packets from the source host to the destination host.
  • IP is a protocol, or set of rules, for routing and addressing packets of data so that they can travel across network and arrive at the correct destination. 
 

What is IPv4 ?

  • Internet Protocol Version 4.
  • 32-bit addressing mode.
  • Used as TCP/IP host addressing machanism.
  • It enables every host on the TCP/IP network to be uniquely.
  • 4 billion unique IP address are generated 2^32.
  •  Range - 0 to 255.
  • It consists 4 octets each has 8 bits.
  •  IPv4 is a numeric address separated by . (dot).
  • It has total 5 classes.
    • class A - 1.0.0.0 to 126.0.0.0 
    • class B - 128.0.0.0 to 191.255.0.0
    • class C - 192.0.0.0 to 223.255.255.0
    • class D - 224 to 239
    • class E - 240 to 255
 
What is IPv6 ?
  • 128-bit addressing mode.
  • It consists 8 octets/segments/block of 4 hexadecimal digits.
  • IPv6 is a numeric address separated by : (colon).
  • It does not consist of classes.
  • 79 x 10^28 unique address space.
 
Types of IPv6 address:
  • Unicast - A unicast address is used to refer to a single host. It is meant to send data to a single destination.
  • Multicast - A multicast address can be used to deliver a package to a group of destination. Any packet sent to a multicast will be delivered to every host that has joined that particular group.
  • Anycast - The anycast address is very similar to the multicast address.
 
       

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