Research Paper NT1430 Essay

When it comes to IPv6 there argon a raft of topics that backside be discussed. It will change the Internet forever as we know it. IPv4 is the fourth version of protocol exploitation a 32 bit address space whereas IPv6 will be using 128 bits of hex addressing to allow for drastically more addresses. Currently IPv4 allows virtually 4,294,967,296 possible addresses and with the period allocation practices it limits the number of public address to a few century 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 menses topology of the Internet. This will provide great flexibility for the addressing and routing in the future tense where the IPv4 obviously lacks in comparison. It would hard to imagine a world where we do consider anymore Internet addresses to go around. This shou ld hopefully solve that problem, at least for a while to come.When configuring DHCP on Linux to use IPv6 one must(prenominal) be sure that they have everything in order. The two most apply means of auto configuration IPS are on the router bear onment 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 of all time be appoint 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 leaving the IP and DNS server configuration all up to the dhcpv6, or only the DNS servers. In order to run dhcpd in IPv6 mode youneed to add a -6 argument.The arguments should define the configuration file and lease file. Here is an example of a startup command /usr/sbin/dhcp -6 cd/etc/dhcpd6.conf lf/var/state/dhcpd6.leases eth1. The -6 enables the IPv6 mode and the cf defines the IPv6 configuration file. Heres an example of the dhcpd6.conf dhcpd6.conf authoritative option dhcp6.name-servers 2001db811200 option dhcp6.domain-search internal.1anIn conclusion, I hope that aft(prenominal) this you understand why IPv6 is such a game changer and why it is so important for our world going forward. Without it our planet would cease to embody and everything would stop. Obviously IPv4 is still around and will be for a few more years, but the days of thinking that IPv4 would last forever or definitely over and its time for something new will hopefully last a little longer.Referenceshttp//technet.microsoft.com/en-us/library/cc780310(v=WS.10).aspx //www.cisco.com/web/about/ protective covering/security_services/ciag /documents/v6-v4-threats.pdf http//linux.ardynet.com/ipv6setup.php