IPv6 Advantages over IPv4 You should know this

IPv6 Advantages over IPv4 You should know this

IPv4 and IPv6 address can easily identified. An IPv4 address uses 32 bit whereas IPv6 address 128 bits. Many of the companies they started moving to IPv6 from IPv4 so that we must know what is IPv6 and what are the advantages.

Example for IPv6 unicast ,

21cd:0053:0000:0000:03ad:003f:af37:8d62.

3 Types of IPv6 Address types:

1- Unicast
2- Anycast
3-Multicast

Let us look into the advantages of IPv6 over IPv4.

Increased address space : IPv6 provides address for every device which needs to have a unique public IPv6 address. In IPv6 64bit host portion address can be automatically generated from the network adapter hardware.

Automatic Address Configuration : IPv6 deals with the need for simpler and more automatic address configuration by supporting both stateful and stateless address configuration.

Network Level Security - Communication over the internet requires encryption to protect data from being viewed or modified in transit. Internet Protocol Security(IP Sec) provides this facility and IPv6 makes IP Sec mandatory.

Real time data delivery - Qos - Quality of Service exists in IPv4 , and bandwidth can be guarenteed for real-time traffic over a network. Payload identification is included in the Flow Label field of the IPv6 header, so payload encryption does not affect QoS operation.

Routing table size - On the IPv6 interet, backbone routers have greatly reduced routing tables that use route aggregation which permits a number of contigous address blocks to be combined and summarized as larger address block.

Header size and extension headers - IPv6 header are smaller in size as compared to IPv4. The optional field are moved to extension headers in IPv6

Removal of Broadcast traffic: IPv6 Neighbor Discovery-ND , protocol uses a series of ICMPv6 messages which replaces ARP broadcasts, ICMPv4 Router Discovery and ICMPv6 Redirect messages which was used in IPv4.