Free Essay

Ipv6 Address Type Multicast

In: Computers and Technology

Submitted By mattr66
Words 1401
Pages 6
Matthew Reece
8/22/2015
IPv6 address type- multicast There is are several differences between ipv4 and ipv6 below I will break them down a bit
IPV4 is 32 bit over 4 octets doesn’t have built in security uses broadcast and bits extend from 2^32 power
IPv6 is 128 bits over 8 quadrats has built in security doesn’t use broadcast and bits extend from 2^128 power
Those are the major differences between IPv4 and IPv6 next we get into a function of IPv6 which is unique it’s called multicast
Neighbor Discovery
Neighbor Discovery uses ICMPv6 messages to manage neighboring node interaction. Neighbor Discovery replaces ARP, ICMP Router Discovery, and ICMP Redirect and provides additional functionality.
Neighbor Discovery Messages
All functions of Neighbor Discovery are performed with the following messages: * Router Solicitation

IPv6 hosts send Router Solicitation messages to discover IPv6 routers present on the link. To prompt IPv6 routers to respond immediately, hosts send multicast Router Solicitation messages rather than waiting for a periodic Router Advertisement message. * Router Advertisement

IPv6 routers send Router Advertisement messages either periodically or in response to the receipt of Router Solicitation messages. Router Advertisement messages contain the information required by hosts to determine what the link prefixes are, what the link MTU is, whether or not to use address autoconfiguration, and the duration for which addresses created through address autoconfiguration are both valid and preferred. * Neighbor Solicitation

IPv6 hosts send Neighbor Solicitation messages to discover the link-layer addresses of on-link IPv6 nodes. Neighbor Solicitation messages include the link-layer address of the sender. Hosts send Neighbor Solicitation messages to multicast addresses to resolve addresses and to unicast addresses to verify the reachability of a neighboring node. * Neighbor Advertisement

IPv6 nodes send Neighbor Advertisement messages in response to the receipt of Neighbor Solicitation messages. Nodes also send unsolicited Neighbor Advertisements to inform neighboring nodes of changes in link-layer addresses. Neighbor Advertisement messages contain information that nodes require to determine the type of Neighbor Advertisement message, the link-layer address of the sender, and the sender’s role on the network. * Redirect

IPv6 routers send Redirect messages to inform an originating host of a better first-hop address for a specific destination. Routers send Redirect messages for unicast traffic only and only to originating hosts. Only hosts process Redirect messages.
To ensure that all Neighbor Discovery messages were sent by a node on the local link, all Neighbor Discovery messages are sent with a hop limit of 255. When a Neighbor Discovery message is received, the Hop Limit field in the IPv6 header is checked. If the field is not set to 255, the message is silently discarded. Verifying that the Neighbor Discovery message has a hop limit of 255 provides protection from network attacks that are based on Neighbor Discovery and launched from off-link nodes. If a message has a hop limit of 255, a router could not have forwarded the message from an off-link node.
Neighbor Discovery Options
RFC 2461 defines the following Neighbor Discovery options: * Source Link-Layer Address Option

The Source Link-Layer Address option indicates the link-layer address of the Neighbor Discovery message sender. Neighbor Solicitation, Router Solicitation, and Router Advertisement messages include this option. This option is not included when the source address of the Neighbor Discovery message is the unspecified address (::). * Target Link-Layer Address Option

The Target Link-Layer Address option indicates the link-layer address of the neighboring node to which IPv6 packets should be directed. Neighbor Advertisement and Redirect messages include this option. * Prefix Information Option

The Prefix Information option is sent in Router Advertisement messages to indicate both address prefixes and information about address autoconfiguration. Each Router Advertisement message can include multiple Prefix Information options, indicating multiple address prefixes. * Redirected Header Option

The Redirected Header option is sent in Redirect messages to specify the IPv6 packet that caused the router to send a Redirect message. This option can contain all or part of the redirected IPv6 packet, depending on the size of the IPv6 packet that was initially sent. * MTU Option

The MTU option is sent in Router Advertisement messages to indicate the IPv6 MTU of the link. This option can be used when the IPv6 MTU for a link is not well known or must reflect a translational or mixed-media bridging configuration. The MTU option overrides the IPv6 MTU that the interface hardware reports.

In bridged or Layer-2 switched environments, different link-layer technologies with different link-layer MTUs can exist on the same network segment. In this case, differences in IPv6 MTUs between nodes on the same network are not discovered through Path MTU Discovery. The MTU option indicates the highest IPv6 MTU supported by all link-layer technologies on the network segment.
Host Data Structures
To facilitate interactions between neighboring nodes, RFC 2461 defines the following host data structures as examples of how to store information for Neighbor Discovery processes: * Neighbor cache

Stores the on-link address of a neighbor, its corresponding link-layer address, and an indication of the neighbor’s reachability state. The neighbor cache is equivalent to the ARP cache in IPv4. * Destination cache

Stores information about forwarding or next-hop addresses for destinations to which traffic has recently been sent. Entries in the destination cache contain the destination IP address (either local or remote), the previously resolved next-hop address, and the Path MTU for the destination. * Prefix list

Lists on-link prefixes. Each entry defines a range of IP addresses for destinations that are directly reachable (neighbors). This list is populated from prefixes that routers advertise in Router Advertisement messages. * Default router list

Lists IP addresses corresponding to on-link routers that send Router Advertisement messages and that are eligible to be default routers.
RFC 2461 defines these structures as an example of an IPv6 host conceptual model. An IPv6 implementation is not required to create these exact data structures as long as the external behavior of the host is consistent with RFC 2461. For example, the IPv6 protocol for Windows Server 2003 uses a routing table rather than a prefix list and default router list. The routing table contains sufficient information to determine how to forward IPv6 packets. For more information, see “IPv6 Routing” later in this section.
Neighbor Discovery Message Exchanges
The Neighbor Discovery protocol provides message exchanges for the following processes: * Address resolution * Duplicate address detection * Router discovery * Redirect function
Address Resolution
To resolve addresses, IPv6 nodes exchange Neighbor Solicitation and Neighbor Advertisement messages to resolve the link-layer address of the on-link next-hop address for a given destination. The sending host sends a multicast Neighbor Solicitation message on the appropriate interface. The multicast address of the Neighbor Solicitation message is the solicited-node multicast address derived from the target IP address. The Neighbor Solicitation message includes the link-layer address of the sending host in the Source Link-Layer Address option.
When the target host receives the Neighbor Solicitation message, it updates its own neighbor cache based on the source address of the Neighbor Solicitation message and the link-layer address in the Source Link-Layer Address option. Next, the target host sends a unicast Neighbor Advertisement to the Neighbor Solicitation sender. The Neighbor Advertisement includes the Target Link-Layer Address option.
After receiving the Neighbor Advertisement from the target host, the sending host updates its neighbor cache with an entry for the target host based on the information in the Target Link-Layer Address option. At this point, the sending host and the target host can send unicast IPv6 traffic to each other.
As an example of this process, Host A has an Ethernet MAC address of 00-AA-00-11-11-11 and a corresponding link-local address of FE80::2AA:FF:FE11:1111. Host B has an Ethernet MAC address of 00-AA-00-22-22-22 and a corresponding link-local address of FE80::2AA:FF:FE22:2222. To send a packet to Host B, Host A must resolve Host B’s link-layer address.
The following figure shows Host A sending a solicited-node multicast Neighbor Solicitation message (based on Host B’s IP address) to the address of FF02::1:FF22:2222. (Microsoft, 2008)

Works Cited
Microsoft. (2008, march 28). How IPv6 works. Retrieved 8 24, 2015, from technet: https://technet.microsoft.com/en-us/library/Cc781672(v=WS.10).aspx

Similar Documents

Free Essay

Ipv6 Address Type

...IPv6 Address Type - Multicast Overview: As part of your assigned readings and material covered in class lecture, you have learned about IPv6 address types, including unicast and multicast addresses. For this assignment, you will expand your knowledge of the use of multicast addresses compared to the use of broadcast addresses in IPv4. Required Resources:  Textbook and lecture notes  Internet access Research Resources: • IPv6 multicast address – overview o http://www.tcpipguide.com/free/t_IPv6MulticastandAnycastAddressing.htm • IPv6 subnet scanning RFC o http://www.ietf.org/rfc/rfc5157.txt Deliverables  Perform additional research to understand the use of multicast addresses in IPv6 protocol compared to IPv4 broadcast addresses with emphasis on: o Neighbor discovery o All nodes address o All routers address  Describe the process of neighbor discovery including the use the all nodes address for achieving the same result as the IPv4 ARP protocol.  Include the IPv6 multicast address for all routers and all hosts.  Perform research to determine: o Are you able to perform subnet “scanning” by simple sending an ICMP echo packet to the “all hosts” multicast address? Similar to the concept of sending an ICMP echo packet to the broadcast address on an IPv4 subnet. o Provide an estimate of how long it would take to scan, through a tool similar to NMAP, an entire /64 IPv6 subnet to find every possible host, not using the multicast “all host” address. Use...

Words: 883 - Pages: 4

Free Essay

Student

...Assignment 1 – IPv6 Address Type – Multicast One of the most significant modifications in the general addressing model in IPv6 was a change to the basic types of addresses and how they were used. For example, the Broadcast addressing type has been eliminated in IPv6. Instead, support for multicast addressing has been expanded and made a required part of the protocol, and a new type of addressing called Anycast has been implemented. In IPv6, multicasting is used to allow a single device to send a datagram to a group of recipients, where IPv4 supported multicast addressing using the Class D address block in the “classful” addressing scheme. In IPv6, the well-known multicast addresses for the “All Nodes” (FF0x:0:0:0:0:0:1) and “All Routers” (FF0x:0:0:0:0:0:2) enable the equivalent function of what broadcast used to perform in IPv4. To send a message, either an “All Nodes” or “All Routers” multicast address is used along with the scope value to determine the scope (Node-Local, Link-Local or Site-Local) where messages are to be sent. Apart from the regular multicast address, each unicast address has a special multicast address called its solicited-node address. These solicited-node addresses are used by the IPv6 Neighbor Discovery (ND) Protocol to provide more efficient address resolution than the ARP method used in IPv4. When a host wants to get the layer two address of a datagram destination it sends a Neighbor Solicitation ICMPv6 message containing the IP address of......

Words: 572 - Pages: 3

Premium Essay

Ipv4 vs Ipv6`

...IPv4 vs. Ipv6 Internet Protocol (IP) is a set of technical rules that defines the network computer connections. There are two primary types of IP. Versions IP 4 and IP 6 IPv4 is the first version of IP to be the most used worldwide. This IP manages most of today’s internet traffic. There are over 4 billion IPv4 addresses, yet there are still not enough IP addresses for the world so something new had to be found. IPv6 is the next version of the growing and improving Internet Protocol. This was deployed in 1999. This new version meets the world’s IP addressing requirements for a very long time. The main difference between IPv4 and IPv6 are number of IP addresses each version contains. There are approximately 4,000,000,000 IP addresses in IPv4, which is 32bit. IPv6 has over 340,000,000,000,000,000,000,000,000,000,000,000,000 possible IP addresses because IPv6 is 128bit. Both versions work together with the Internet, but most all new IP addresses added to the Internet all come from IPv6 rather than IPv4 now because of the faster speeds and more options. IPv4 addresses are 32 bits long (4 bytes). The addresses are defined by host portion. The IP addresses are depended on address classes. In the 4,294,967,296 IPv4 addresses are available to the world; take the example IP address in the format 0000.0000.0000.0000 where each 0 could actually be a number from 0-9. IPv6 addresses are 128 bits long (16 bytes). Basic network architecture is defined as 64 bits and also hosts......

Words: 1604 - Pages: 7

Free Essay

Ccnp Bsci 642 901

...The Evolving Network Model EIGRP OSPF IS-IS Optimizing Routing CCNP BSCI Quick Reference Sheets Exam 642-901 BGP IP Multicast IPv6 Introduction Brent Stewart Denise Donohue ciscopress.com [2] ABOUT THE AUTHORS CCNP BSCI Quick Reference Sheets About the Authors Brent Stewart, CCNP, CCDP, MCSE, Certified Cisco Systems Instructor, is a network administrator for CommScope. He participated in the development of BSCI, and has seperately developed training material for ICND, BSCI, BCMSN, BCRAN, and CIT. Brent lives in Hickory, NC, with his wife, Karen and children, Benjamin, Kaitlyn, Madelyn, and William. Denise Donohue, CCIE No. 9566, is a Design Engineer with AT&T. She is responsible for designing and implementing data and VoIP networks for SBC and AT&T customers. Prior to that, she was a Cisco instructor and course director for Global Knowledge. Her CCIE is in Routing and Switching. © 2007 Cisco Systems Inc. All rights reserved. This publication is protected by copyright. Please see page 73 for more details. [3] ICONS USED IN THIS BOOK CCNP BSCI Quick Reference Sheets Icons Used in This Book Si Router 7507 Router Multilayer Switch with Text Multilayer Switch Communication Server Switch I DC Internal Firewall IDS Web Browser Database App Server © 2007 Cisco Systems Inc. All rights reserved. This publication is protected by copyright. Please see page 73 for more details. [4] CHAPTER 1 CCNP...

Words: 24928 - Pages: 100

Premium Essay

History of Ipv4

...The Development of IPv6 started in the 1990s, due to the limitation of IPv4. IPv6 was developed by the Internet Engineering Task Force to deal with the long-anticipated problem of IPv4 address exhaustion. IPv4 address exhaustion occurred on February 3, 2011, It had been significantly delayed by address changes such as classfull network design, Classless Inter-Domain Routing, and network address translation. IPv6 is intended to replace IPv4, which still carries the vast majority of Internet traffic as of 2013. IPv6 is a next generation internet protocol which uses 128 bits addressing. IPv6 can hold 340-undecillion, while IPv4 allows 4,294,967,296 unique addresses. IPv6 addresses consist of eight groups of four hexadecimal digits separated by colons, an example of an IPv6 address is this: 2001:0db8:85a3:0042:1000:8a2e:0370:7334. IPv4 and IPv6 are the internet protocols applied at the network layer. IPv4 is the most widely used protocol right now. The first IPv6 related network code was added to the Linux kernel 2.1.8 in November 1996 by Pedro Roque. Because of lack of manpower, the IPv6 implementation in the kernel was unable to follow the discussed drafts or newly released RFCs. In October 2000, a project was started in Japan, called USAGI, whose aim was to implement all missing or outdated IPv6 support in Linux. IPv4 has different class types: A,B,C,D and E. Class A, Class B, and Class C are the three classes of addresses used on IP networks in common practice. Class D......

Words: 518 - Pages: 3

Free Essay

Information Technology

...A multicast address is a logical identifier for a group of hosts in a computer network, that are available to process datagrams or frames intended to be multicast for a designated network service. Multicast addressing can be used in the Link Layer (Layer 2 in the OSI model), such as Ethernet multicast, and at the Internet Layer (Layer 3 for OSI) for Internet Protocol Version 4 (IPv4) or Version 6 (IPv6) multicast. The Neighbor Discovery Protocol (NDP) is a protocol in the Internet protocol suite used with IPv6. It operates in the link layer of the Internet model and is responsible for address auto-configuration of nodes, discovery of other nodes on the link, determining the link layer addresses of other nodes, duplicate address detection, finding available routers and Domain Name System (DNS) servers, address prefix discovery, and maintaining reachability information about the paths to other active neighbor nodes. The protocol defines five different ICMPv6 packet types to perform functions for IPv6 similar to the Address Resolution Protocol (ARP) and Internet Control Message Protocol(ICMP) Router Discovery and Router Redirect protocols for IPv4. However, it provides many improvements over its IPv4 counterparts. For example, it includes Neighbor Unreachability Detection (NUD), thus improving robustness of packet delivery in the presence of failing routers or links, or mobile nodes. All nodes addresses Host Extensions for IP Multicasting specifies the......

Words: 573 - Pages: 3

Free Essay

Ipv4 Versus Ipv6

...version 6 (IPv6). IPv4 was the first version of Internet Protocol to be widely used, and accounts for most of today’s Internet traffic. There are just over 4 billion IPv4 addresses. While that is a lot of IP addresses, it is not enough to last forever. IPv6 is a newer numbering system that provides a much larger address pool than IPv4, amongst other features. It was deployed in 1999 and should meet the world’s IP addressing needs well into the future. The major difference between IPv4 and IPv6 is the number of IP addresses. There are 4,294,967,296 IPv4 addresses. In contrast, there are 340,282,366,920,938,463,463,374, 607,431,768,211,456 IPv6 addresses. IPv6 has many advantages compared with the older Internet protocol IPv4. The most useful advantages of IPv6 are address space extention, and simplified header format for efficient packet handling. Processing packets of IPv6 by routers is easier than processing packets of IPv4, because the hardware program knows in advance that the coming header is static in length. Thus the packet processing speed increases. There are three types of address in IPv6: anycast, unicast and multicast. In IPv4 there are unicast, broadcast, and multicast address. The anycast address is an additional address to IPv6, for sending the packet to the nearest node in the group, according to the routing protocol measure of distance. It provides for applications such as file and print servers, DHCP. The unicast address is used to...

Words: 936 - Pages: 4

Premium Essay

Exam 3

...1. Know the list of well-known ports? smtp = mail = port 25/tcp telnet = port 23/tcp ssh = port 22/tcp snmp = port 161/udp tftp = port 69/udp 2. Range of ephemeral ports? 1024-65535 3. Some of the fields inspected by a firewall? Source IP address  Destination IP address  IP protocol (ICMP, TCP or UDP)  Source TCP or UDP port  Destination TCP or UDP port  4. If firewall permits port 25, what is it permitting? smtp=mail 5. What does nat stand for? Network Address Translation 6. What’s the basic function of NAT? a private address is translated to public address from a pool of available public addresses 7. Example of a routing protocol used within an organization RIP, RIP v2, EIGRP, OSPF,ISIS 8. Which routing protocol uses distance vectors? RIP, RIP v2, EIGRP 9. Which routing protocol uses links states? OSPF, ISIS 10. OSPF stands for? Open Shortest Path First 11. What does RIP stand for? Routing Information Protocol 12. Which of the following uses the Dijkstra Algorithm? FIU uses OSPF 13. Which routing protocol is considered in EGP? Exterior Routing 14. Example of a classless routing protocol? RIP version 2 15. Layer 2 framing is used by which of the following? Point-to-Point Protocol Serial links - including dial-ups POS - Packet over sonet (fiber optic) 16. ISDN {BRI} stands for what? Basic Rate Interface 17. ISDNBR has how many B channels? 2B + D 2 bearer channels of 64kbps and one signaling...

Words: 585 - Pages: 3

Premium Essay

Nt2640 Project Paper

...destinations of messages it is responsible for forwarding. The table is a small in-memory database managed by the router's built-in hardware and software. Each IP address identifies a remote router (or other network gateway) that the local router is configured to recognize. For each IP address, the routing table additionally stores a network mask and other data that specifies the destination IP address ranges that remote device will accept. Home network routers utilize a very small routing table because they simply forward all outbound traffic to the Internet Service Provider (ISP) gateway which takes care of all other routing steps. Home router tables typically contain ten or fewer entries. By comparison, the largest routers at the core of the Internet backbone must maintain the full Internet routing table that exceeds 100,000 entries and growing as the Internet expands. b. Routing Lookup Mechanism- c. Classful vs. Classless Routing- Classful Routing, which is sometimes called a classful network. If you are using a classful routing protocol then all of your networks are in different classes and are separated by a router. Remember that the useable IPv4 address ranges are divided into classes. Class A 1-126, Class B 128-191, and Class C 192-223. So when we talk about a classful routing protocol, it will only look at the IP address class and not the subnet mask. This is the problem; if you are using a classful routing protocol you cannot change the subnet mask in any of......

Words: 3788 - Pages: 16

Premium Essay

Intro to Ipv4 & Ipv6

...Introduction to IPv4 & IPv6 IPv4 is the fourth version of Internet protocol which uses 32 bit addressing whereas IPv6 is a next generation internet protocol which uses 128 bits addressing. 32 bits long (4 bytes). IPv4 is a classful logical addressing scheme using three primary address classes: Class A, Class B, and Class C. The class of the address is determined by the first number in the IP address. The total number of IPv4 addresses is 4, 294, 967,296. Address type: Unicast, multicast, and broadcast. IPv4 expressed in dotted decimal notation. The new concepts and new implementation of old concepts in IPv6 include the following: * Larger address space (128-bit vs. 32-bit) * Autoconfiguration of Internet-accessible addresses with or without DHCP (without DHCP it’s called stateless autoconfiguration) * More efficient IP header (fewer fields and no checksum) IPv4 allows 4,294,967,296 unique addresses whereas IPv6 can hold 340-undecillion (34, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000) unique IP addresses. 128 bits long (16 bytes). Basic architecture is 64 bits for the network number and 64 bits for the host number. Often, the host portion of an IPv6 address (or part of it) will be a MAC address or other interface identifier. Address type: Unicast, multicast, and broadcast and anycast. IPv6 expressed in colon hexadecimal notation. DHCP servers in Linux can be configured to use IPv6: * Step 1: configure a fixed IPv6 address on your......

Words: 920 - Pages: 4

Premium Essay

Computers

...ITS3103: Week 5– Assignment 2 18 March 2014 Tim Williams Professor Afzal South University ITS3103: Week 5– Assignment 2 18 March 2014 Tim Williams Professor Afzal South University Network Design Blue Print: PaintisDead.com (Vehicle Vinyl Wrapping Design Company). The company designs vehicle graphics for commercial and private vehicles and buildings. PaintisDead.com is headquarters is located in Miami, Florida (75 employees to include corporate management). Telecommunication Network Design needs to accommodate the headquarters and 5 satellite cities with at least 35 employees to include general manager in each store. Store locations are in Savannah Georgia, Fayetteville North Carolina, Richmond Virginia, Jacksonville Florida, and Dover Delaware. The company needs to have a telecommunication system that is efficient and cut down on business trips between all the stores to include the headquarters. Video conferencing, VoiP, push to talk cell phones for sales and design, computer network to protect design ideas when they are being transferred to other stores or when accessed on the server. * Does the client already have an established network and do they want to improve on it? Update vs. full network installation. * Does the client have a network? * What is the client’s budget? * What are the clients plans for growth? (Scalability of network to accommodate the rise in business 5yr vs. 10yr. * Security Considerations. * Used,......

Words: 5175 - Pages: 21

Premium Essay

Asdf

...Addressing vii. Hardware addressing viii. Logical addressing * OSI model * TCP/UDP ix. Connection oriented/connectionless x. Windowing * Types of destinations xi. Unicast xii. Broadcast xiii. Multicast * Cables xiv. Ethernet xv. Serial * Duplex 2. TCP/IP * OSI model * TCP/IP or DOD model * DHCP * Basic port numbers * TCP xvi. virtual circuits (three-way handshake) xvii. Headers * UDP xviii. Headers * IP xix. Headers * Frame xx. Header * ICMP * ARP * RARP * Proxy ARP 3. IP addressing / Subnetting /VLSM / Summarization * Binary to decimal * IP address classes * CIDR * IP Subnet Zero * Subnetting * VLSM * Summarization 4. Router interface * Router components * Modes * Configuration register * Keyboard shortcuts 5. IOS management * Boot up sequence * Configuration saves and loads * SSH * resolving hostnames 6. dynamic routing * ip address support xxi. classful xxii. classless * types of routing protocols xxiii. distance vector * Split Horizon * Infinite Metric (Poison Reverse) xxiv. link state xxv. hybrid......

Words: 458 - Pages: 2

Free Essay

Modern Networking Essentials

...ICANN ICANN – Internet Corporation for Assigned Names and numbers transport layer protocol – Define the type of connection established between hosts TCP- Transport Layer Protocol connection-oriented protocol – establishes a network connection, manages the delivery of data, and terminates the connection SYN, SYN ACK, ACK – synchronizing packet, synchronizing acknowledgment packet, acknowledgment packet UDP – User Datagram Protocol Internet Layer – Defines the protocol being used IP- Internet Protocol, defines the addressing being used to identify the source and destination of data packets sent over an IP netwrok ARP – Address resolution Protocol, IP to MAC IGMP – Internet Group Message Protocol multicasting – when one host sends data to many destination hosts multicasting address – the address used to send a multicast data packet network interface layer – defines how the host connects to the network hex – hexadecimal, base 16 Ipv4 – The older IP version currently being used on the internet class A, B, C, D, and E – the five classes of IPv4 non internet routable IP address - IP address not routed on the internet RIRs – Regional Internet registries, IANA-designated governing organizations responsible for IP address allocation by geographical location ARIN – American Registry for Internet Numbers subnet mask – Identifies the network/ subnet portion of an IP address classful – the IP and subnet addresses within the same network supernetting – allows......

Words: 329 - Pages: 2

Free Essay

Waleed

...IP v6 Introduction: IPv6 or IP version 6 is the next generation Internet protocol which will eventually replace the current protocol IPv4.it is the communication protocol that provides an identification and location system for computers on networks and routes traffic across the Internet. IPv6 was developed by the Internet Engineering Task Force (IETF). IPv6 has a number of improvements and simplifications when compared to IPv4. The primary difference is that IPv6 uses 128 bit addresses as compared to the 32 bit addresses used with IPv4. This means that there are more available IP addresses using IPv6 than are available with IPv4 alone. For a very clear comparison, in IPv4 there is a total of 4,294,967,296 IP addresses. With IPv6, there is a total of 18,446,744,073,709,551,616 IP addresses in a single /64 allocation. Many operating have native IPv6 support nowadays. IPv6 provides other technical benefits in addition to a larger addressing spaceIPv6 addresses are represented as eight groups of four hexadecimal digits with the groups being separated by colons, for example 2001:0db8:0000:0042:0000:8a2e:0370:7334, but methods to abbreviate this full notation exist. The transition from IPv4 to IPv6 is being worked on to be as seamless as possible, and many might not even notice the subtle changes in the coming years. Requirements of IPv6: All software must support IPv4 and IPv6 and be able to communicate over IPv4-only, IPv6-only and dual-stack networks. If software includes......

Words: 1189 - Pages: 5

Premium Essay

Ipv4 vs Ipv6

...disasters. Nowadays, the Internet has drastic control on culture and business with the rise of instance communication by electronic mail (Email), instant messaging, video calls and the World Wide Web (WWW) with its forums, blogs, social networking and online shopping sites. The internet continues to grow, driven by ever greater amounts of online information and knowledge, business, entertainment and social networking. According to Chuck Semeria, the Internet has entered the public awareness as the world’s largest public data network, doubling in size every nine months. This is because of the great popularity of the WWW, the opportunities that businesses see in reaching customers from virtual storefronts, and the development of new types and methods of doing business. It is clear that by expanding business and social awareness will continue to increase public demand for access to resources on the Internet. Besides, with the growth of the Internet, the value of each site’s connection...

Words: 2813 - Pages: 12