IPv6 (Internet Protocol version 6)

Tuesday, May 29, 2018

IPv6 (Internet Protocol version 6)

IPv6 is one of the most appear technologies in networks. IPv4 addresses are almost
 disabled and, as such, a new and better solution is needed. IPv6, which is the ending 
chapter of this  CCNA training in Chandigarh, we will look at the concepts disabled
 this protocol, we will learn why there is a need for IPv6 that will be pursue by the
 configuration of IPv6 addresses according to the requirements of the net. We'll finish
 looking at IPv6 routing using OSPF and we'll see how it differs from OSPFv2.
CCNA Training in Chandigarh

What is IPv6 and why is it important?

Let’s talk about the use of IPv4 and we said that the IPv4 address space provides
 approximately 4,294,967,296 unique addresses. Of these, only 3,700 million 
addresses are assignable because the IPv4 addressing system separates 
addresses into classes and reservation addresses for multi casting, testing and 
other specific uses.IPv4 addresses are almost exhausted and this is due to the
 increased use of the Internet; the number of devices with which one can use
 the Internet these days is many; Smartphones, tablets, laptops and other 
devices can now access the Internet. Even with NAT, the rapid growth of
 the Internet is leading to the depletion of IPv4 addresses. Learn IPv6 and its 

Advantages of IPv6

As you can see in the following table, the use of IPv6 provides so many functions
 and possibilities that were previously not available in IPv4.
Advantages of IPv6

Types of IPv6 addresses

An IPv6 address will be one of the following types. Some will be familiar, but there
 is also a new one.

Unicast: an IPv6 unicast address is the same as an IPv4 unicast address; it is an IP 
that is assigned to an interface on a host. It can be the source of an IP packet or the 
destination of one. A packet sent to a unicast address goes to the only host with 
that address.

Global Unicast: A global unicast IPv6 address is the equivalent of a registered public
 IP address. They are IP routable by Internet, registered worldwide and must be leased
 from an ISP.

Single Local: equivalent to a private IPv4 address; not registered with an ISP and not
 rout-able by Internet.

Local link: each IPv6 interface is granted a local link address. The address range is 
FE80 :: / 10, and it generally combines this prefix with the last 64 bits in EUI-64 format.
 It is more or less equivalent to the address range of the automatic private IP address 
(APIPA) of

Multicast: As in IPv4, a single IPv6 multicast address is assigned to multiple hosts 
so that a packet sent to the address can be delivered to several hosts more or less
 at the same time. IPv6 multicast addresses always start with the prefix FF00 :: / 8.

Anycast: an anycast address is a single address that is assigned to multiple hosts. 
This is multicast, omitting that a packet for the IP address will be provided to the 
nearest one according to the distance of ​​the routing protocol. There is no special 
prefix for anycast addresses.

CCNA Training in Chandigarh is the best place to learn networking and Become
 an Certified networking engineer.  


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