Write a short note on ipv6

Write a short note on ipv6

A router is any Layer 3 device capable of routing and forwarding IPv6 packets. A packet sent to an anycast address must be delivered to exactly one of the members of the group which is closest or the most easily accessible. IPv6 also supports auto-configuration to help correct most of the shortcomings in version 4, and it has integrated security and mobility features. The source and destination address sizes in IPv6 are bits as against 32 bits in IPv4. So there is a huge increase in the address space. Source and destination addresses are bits 16 bytes in length. That's an IP address since the Internet's inception will soon be exhausted. As IPv6 has been noticed, it is evident that these major vendors have drawn the attention of the hackers. You learn why it is important to consider the security for IPv6 before its wide-scale deployment. The transition from IPv4 to IPv6 is likely to be rough, though. Of course, Cisco equipment fully supports dual-stack configuration, and the number of IPv6 features within IOS devices continues to grow. The IPv6 subnet size is standardized by fixing the size of the host identifier portion of an address to 64 bits. The process of making the switch to IPv6 from IPv4 is slow and tedious. It is equivalent to the IPv4 address This concept describes the scenario in which a router supports two or more different routed protocols and forwards each type of traffic, independent of the behavior of the other routed protocol.

Google reported in Augustthat nearly 29 percent of those searching on Google were doing so over IPv6. As IPv4 was developed and the Internet explosion took place in the s, Internet threats became prolific.

Moreover, an IPv6 header does not include a checksum. The advantages of IPv6 are detailed in many other books on IPv6.

what is ipv6 used for

Unicast: A unicast address defines a single computer. In this way, IPv6 allows a network to comprise of a single host and above. IPv6 has been designed to satisfy the growing and expanded need for network security.

Uses Flow Label field to identify packet flow for QoS handling by router.

ipv6 size

Integrity protection for the data that is encapsulated in the IPv6 packet is assumed to be assured by both the link layer or error detection in higher-layer protocols, namely the Transmission Control Protocol TCP and the User Datagram Protocol UDP on the transport layer.

IPv6 also supports auto-configuration to help correct most of the shortcomings in version 4, and it has integrated security and mobility features.

ipv6 tutorial
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Chapter 1: Introduction to IPv6