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Ipv4 vs Ipv6

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IPv4 vs. IPv6
Dorina Dibra South Eastern European University dorina.dibra@gmail.com

ABSTRACT
Network improvement has become follower in today’s modern life. The more we work the more we are affected to network and thus normally having always new requirements. To implement more efficient methods is needed first to predicate them. This predication needs to be developed before the requirements are very high. Users always expect more from networking while they compare old and current methods they’re working on. If network improvement performs poorly it would damage many businesses, consumer satisfaction etc, thus forthcoming of network should always be improved and not go down. One of the greatest improvements made on network field was …show more content…

What IPv4 provides in the header is IP checksum which does error detection but not correction. Still, doing error detection would cause delay on network. That’s why in Internet Protocol version 6 this checksum is abandoned. Since now, the dominator of internet protocol is IPv4, although the spread of the newest version 6 is happening 7 worldwide. Picture below shows how IP packets are field:

Fig 2: IPv4 address with total 32 bits.

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The figure number 3 shows how IPv4 packet is field. IPv4 uses 32 bits or 4 bytes for addresses. 32 Thus, there are 4,294,967,296 (2 ) addresses that can be used. Although 4 billion is a big number, it is not enough comparing to the number of users that are sweater of these IP addresses. Some of them are served for specific purpose such as: for private network (18 millions) and multicast address (16 million). These reserved IP addresses limits the rest that can be used by random users.

Fig 3. IP packet fields.

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To outface this problem Network Address Translation (NAT) method is used. This enables devices with private addresses to be connected to a public network address (e.g. Internet). This private address is converted to legal IP address, through NAT routers before traveling 11 “outside”. (See figure 4). Every device that is connected to the network has a unique IP address but this doesn’t mean that is permanent. Because devices connected to the network,

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