IPv6 Features

IPv6 has added many new features, which together enhance the performance, security, and address space of the Internet protocol. The main features of IPv6 are

  • Extended address space— The IP address size in IPv6 has increased to 128 bits compared to the 32-bit address in IPv4. As the number of available IPv4 addresses are becoming exhausted, IPv6 provides a vast increase in the number of addresses available.

  • Improved routing— A simplified header in IPv6 reduces the routing complexity, increasing the performance of routers. Additionally, the inclusion of scope bits in multicast addresses improves routing by determining how far a multicast IP datagram is routed.

  • Simplified header format— The number of fields in the IPv6 datagram header ...

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