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IPv6 at UCAR

IPv6 at UCAR. Pete Siemsen 1/14/2014. What is IPv6?. N ext generation of the Internet Protocol. D esign started in 1993 First standards: 1998. What ’ s wrong with IPv4?. Address exhaustion Routing tables getting large (400k+) Improved end-to-end connectivity (no NAT).

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IPv6 at UCAR

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  1. IPv6 at UCAR Pete Siemsen 1/14/2014

  2. What is IPv6? • Next generation of the Internet Protocol. • Design started in 1993 • First standards: 1998

  3. What’s wrong with IPv4? • Address exhaustion • Routing tables getting large (400k+) • Improved end-to-end connectivity (no NAT)

  4. Features of IPv6 • Ugly 128-bit addresses • Old: 128.117.63.6 • New: 2001:468:503:3f::94eb • Co-exists with IPv4, called “dual-stack” • Can auto-configure end hosts (we won’t) • Minor new things: Anycast, Mobile, Security

  5. IPv6 at NCAR today • Not much demand • We’ve had limited IPv6 for years • Test VLANs exist at ML and FL • Very little traffic • Works well

  6. IPv6 Future at NCAR • NETS leading, with NCAB oversight • Will convert existing VLANs to dual-stack • Gradual, division-by-division, when asked to • Wireless too • NETS is testing IPv6 DNS/DHCPv6/IPAM servers • Won’t use auto-configuration

  7. Impact of IPv6 at NCAR • We expect little negative user impact • More network complexity • More security complexity • Better reachability to IPv6-capable sites

  8. Questions? siemsen@ucar.edu

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