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IPV4 vs IPV6
over 8 years ago
IPV4 is the previous old systems over which the transmission is been done from source to the destination.
It is kind of address that is used to identify the host on the network.
IPV4 uses a 32-bit addressing scheme that will provide the 2 to the power 32 addresses we can store using this model.
So these addresses are limited and cannot be increased so this creates a need for the evolution for the IPV6.
A new Internet addressing system Internet Protocol version 6 (IPv6) is being deployed to fulfill the need for more Internet addresses.
IPV6 is the latest communication model we have in the internet for providing communication between the source and the client in the network.
It is like a successor to the legacy model which contain more number of addresses to be used in the network.
IPv6 is designed to allow the Internet to grow steadily, both in terms of the number of hosts connected and the total amount of data traffic transmitted.
IPv6 is often referred to as the "next generation" Internet standard and has been under development now since the mid-1990s. IPv6 was born out of concern that the demand for IP addresses would exceed the available supply.IPv4 IPv6 IPv4 addresses are 32 bit length. IPv6 addresses are 128 bit length. IPv4 addresses are binary numbers represented in decimals. IPv6 addresses are binary numbers represented in hexadecimals. IPSec support is only optional. Inbuilt IPSec support. Fragmentation is done by sender and forwarding routers. Fragmentation is done only by sender. No packet flow identification. Packet flow identification is available within the IPv6 header using the Flow Label field. Checksum field is available in IPv4 header No checksum field in IPv6 header. Options fields are available in IPv4 header. No option fields, but IPv6 Extension headers are available. Address Resolution Protocol (ARP) is available to map IPv4 addresses to MAC addresses.
Address Resolution Protocol (ARP) is replaced with a function of Neighbor Discovery Protocol (NDP). Internet Group Management Protocol (IGMP) is used to manage multicast group membership. IGMP is replaced with Multicast Listener Discovery (MLD) messages. Broadcast messages are available. Broadcast messages are not available. Instead a link-local scope "All nodes" multicast IPv6 address (FF02::1) is used for broadcast similar functionality. Manual configuration (Static) of IPv4 addresses or DHCP (Dynamic configuration) is required to configure IPv4 addresses. Auto-configuration of addresses is available.
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