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Research Paper Nt1430


Submitted By wmmoore73
Words 538
Pages 3
Matt Moore
Research Paper

When it comes to IPv6 there are a lot of topics that can be discussed. It will change the Internet forever as we know it. IPv4 is the fourth version of protocol using a 32 bit address space whereas IPv6 will be using 128 bits of hexadecimal addressing to allow for drastically more addresses. Currently IPv4 allows roughly 4,294,967,296 possible addresses and with the current allocation practices it limits the number of public address to a few hundred million. In contrast, the 128 bit address space that IPv6 uses can provide roughly 3.4 x 1038 possible addresses. The sheer size of the IPv6 address allows for the subdividing of the address into a hierarchical routing structure that in turn can reflect the current topology of the Internet. This will provide great flexibility for the addressing and routing in the future where the IPv4 obviously lacks in comparison. It would hard to imagine a world where we do have anymore Internet addresses to go around. This should hopefully solve that problem, at least for a while to come. When configuring DHCP on Linux to use IPv6 one must be sure that they have everything in order. The two most used means of auto configuration IPS are on the router advertisement and dhcpv6. When you are using the RA a server daemon needs to advertise a network prefix which is typically a /64, gateway and sometimes a DNS server. Then the Client machines can auto configure their IPv6 addresses when they have initialized a bootup based on their current MAC address using EUI64. When addressing the same situation with dhcpv6, dynamic or static addresses can always be assigned to the current client machines. Unfortunately the gateways cannot be assigned due to the design of the dhcpv6 protocol. If you must use dhcpv6 you have to use RA. You can configure RA to advertise only the gateway

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