Since there are so many IP addresses that need to be handled on the Internet, IPv4 and IPv6 need a way to keep track and configure them. This is normally referred to as address resolution. This includes translating network layer addresses into link layer addresses, having automatic assignments of addresses, and routing data to the correct location on a specific network. IPv4 uses a protocol called Address Resolution Protocol, or ARP, in order to translate IP addresses into MAC addresses. A MAC address is the unique number given to the network interface card in each computing device. The reason this needs to be done is because on many intranet networks, the internal communication and delivery of data is based off of the MAC address rather than the IP address. The Dynamic Host Control Protocol, or DHCP, handles the automatic configuration and assignment of IP addresses in IPv4. DHCP is an internal protocol that takes the MAC addresses of the NICs on a network, and automatically assigns IP addresses. It also keeps track of them so that two NICs don’t acquire the same IP address. Without DHCP every IP address would have to be entered manually by the system administrator, which would be incredibly difficult considering how many devices can potentially access a network. IPv6 uses similar methods to perform both of those functions, but there are still important differences that exist to improve the way that IPv6 performs. Instead of ARP, IPv6 uses the Neighbor Discovery Protocol
IPv6 is more flexible in using protocols which, are mainly defined as the Request for Comment (RFC) that we discussed in the discussions. Protocols are defined in the RFC, but the name of the protocol will be something like Internet Protocol, Internet Control Message Protocol, Telnet Protocol, and many more. The reason why these Protocols are more flexible in the IPv6 is for one, the IPv6 is a newer technology than the IPv4, and the IPv6 also has more functionality and allows more flexibility in the protocols, whereas the
The Dynamic Host Control Protocol automatically assigns IP addresses to hosts on a network as they request them. DHCP packets also include information like DNS server addresses, domain names, and default gateways.
Internet Protocol version 4 (IPv4) IPv4 is a connectionless protocol for use on packet-switched networks. It is the fourth version of the Internet Protocol (IP), that is one of the core protocols of standards-based internetworking methods in the Internet. It was the first version deployed for production in the ARPANET in 1983. It still used to routing most Internet traffic today, eventhough we have the next version of it,IPv6.
It is expressed as a dotted decimal number format to make it easier for human beings and the computer to remember.
The internet layer is built up of four core protocols: IP, IGMP, ICMP and ARP. Internet protocol (IP) is responsible for routing, IP addressing and breakdown/reassembly of data packets, address resolution protocol (ARP) is responsible for mapping an IP address to a device on the local network, internet control message protocol (ICMP) provides diagnostic information and error reports on lost packets, internet group management protocol (IGMP) controls who receives IP datagrams in a single transmission. The transport layer is built up of two core protocols: TCP and UDP. Transmission control protocol (TCP) sequences and acknowledges packets sent and their recovery when lost in transmission allowing the computer to make and maintain network conversations where applications exchange data, defined as a connection-oriented protocol meaning the connection is maintained until the programs has finished exchanging data. User datagram protocol (UDP) This is used to transfer small amounts of data when the use of error correction isn’t needed increasing the speed of the transmission, common in multi-player video games as the user will not need to receive packets of past events in the game so the error correction featured in (TCP) would be
28. Pg 173 IP Address. Hosts have logical IP addresses (changeable) TCP/IP is in the network layer. The MAC address is the physical layer. Mac addresses cannot be changed. ARP is used to connect a logical IP with a MAC.
4. Which feature is an integral part of IPv6, where as it was an optional feature under IPv4? IPSec
Ans: Dynamic Host Configuration Protocol (DHCP) is a network protocol that enables a server to automatically assign an IP address to a computer from a defined range of numbers configured for a given network.
IP addresses can be used by more than one system, reducing the total number of IP addresses needed. This conservation of addresses is important because the Internet is quickly running out of IPv4 addresses. Although a particular IP address can be used by only one system at a time, many enduser systems require addresses only occasionally, when they connect to the Internet. By reusing IP addresses, DHCP lengthens the life of the IPv4 protocol. DHCP applies to IPv4 only, as IPv6 forces systems to configure their IP addresses automatically (called autoconfiguration) when they connect to a network (page 373).
The TCP/IP protocols are the heart and soul of the Internet, and they describe the fundamental rules that govern all communications in the network. The original address system of the Internet is Internet Protocol version 4 (IPv4). The Internet Engineering Task Force (IETF) developed IPv6 to deal with the long-anticipated problem of IPv4 address exhaustion. However, IPv6 is not foreseen to supplant IPv4 instantaneously.
DNS is a protocol with some protocols for computers in exchanging data over the Internet.Its basic job is to turn a user-friendly domain name like "google.com" into an Internet Protocol (IP) address like 8.8.8.8 and 8.8.4.4 for IPv4 that computers use to identify each other on the network.Infact Google Public DNS is largest DNS service in the world which handles more than 400 billion requests a day. All the host devices on the internet use an identity which is called an IP Address to establish a connection with site they are need. With the DNS service, we don’t need to remember the whole bunch of numbers stacked at each decimal point. We just use a DNS server or name server and access the sites with specific names.And this DNS server
IPv4 addressing is the next method, it’s is split up into two main parts as well Network I.D and Host I.D which are split over four octets which are written as four decimal numbers which have 32 bits, it only contains 4.3billion different IPs. For example, you sent an IP to a website and it sends its IP back, which means you can communicate. Whereas IPv6 addressing has 128 bits and is written as
I would also grateful to my institution, IT staff and my classmates who co-ordinate with me during the completion of this report and provided me their valuable suggestions that acted as a milestone for my work. I also extend my heartfelt thanks to my family and friends.
What is IPv4? IPv4 is a 32-bit address used for communication between nodes using the TCP/IP protocol. The IPv4 address is broken into 4 octets each 8 bits long in binary and are broken into 5 different classes. Class A addresses start out where the first octet of the IP address ranged from 1-127 where 10 is reserved from private IP addresses. Class B addresses start out with 128 - 191 and has the 172.16.x.x to 172.31.x.x reserved from private IP addresses. Next is class C addresses that range from 192 - 223 in the first octet where 192.168.x.x is reserved from private IP addresses. Class D addresses range from 224 -239 in the first octet and are reserved from multicasting network traffic. Finally we have class E that range from 240 - 255 in the first octet and is reserved for experimental purposes ("IPv4," 2016).
IPV6 Transition has been studied to find the best way of migrating internet network system from using IPV4 to IPV6. Many mechanisms were purposed for transferring IPV4 packet on IPV6 network and IPV6 packet on IPV4 network. For example, IPV6 transition used End-to-End Tunnel by employing the exchange control message between host and server then IPV6 data can be transferred via IPV4 network .