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V6OPS WG – IETF #85 IPv6 for 3GPP Cellular Hosts. draft-korhonen-v6ops-rfc3316bis-00 Jouni Korhonen , Jari Arkko, Teemu Savolainen, Suresh Krishnan. Outline. Motivation for RFC 3316bis What has been changed Removed from RFC 3316 Clarifications on the existing text

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v6ops wg ietf 85 ipv6 for 3gpp cellular hosts

V6OPS WG – IETF #85IPv6 for 3GPP Cellular Hosts

draft-korhonen-v6ops-rfc3316bis-00

Jouni Korhonen, Jari Arkko, Teemu Savolainen, Suresh Krishnan

outline
Outline
  • Motivation for RFC 3316bis
  • What has been changed
    • Removed from RFC 3316
    • Clarifications on the existing text
    • New additions to RFC 3316
  • Next steps
motivation for rfc 3316bis
Motivation for RFC 3316bis
  • RFC 3316 was done ~9 years ago, prior IPv6 Node Requirements; No need to repeat RFC 6434 (was RFC 4294) Node Requirements content.
  • Reflect recent 3GPP developments and experience.
  • Some IPv6 RFCs are not mandated by 3GPP but make sense e.g., in hosts with multiple interfaces.
  • Keep it simple and conservative. This is not a 3GPP document or a tool for driving deployment specific requirements!
what has been changed removed parts
What has been changed – removed parts
  • Removal of all sections that can be directly found from RFC 6434 and do not require specific attention in 3GPP system:
    • IPv6 “basics”, PMTUD, IKE/IPsec, default address selection to name few..
what has been changed clarifications
What has been changed – clarifications
  • Clarifications to 3GPP link model and how Neighbor Discovery works on it.
    • Previous text in RFC 3316 was sometimes misinterpreted..
    • And there have been too many broken cellular host implementations and too strict GGSNs.
    • Already documented in RFC 6459 – endorsed here.
  • Clarification on the primary 3GPP IPv6 transition mechanism..
    • ..which still is dual-stack. The rest are up to specific deployments.
  • Made the PPP IPV6CP support text conditional.
what has been changed new additions
What has been changed – new additions
  • Addition of 3GPP EPS text i.e., Release-8 and onwards.
  • Addition of RFC 4191 (router preferences) recommendations.
  • Addition of DHCPv6-based Prefix Delegation recommendations, which is new to 3GPP Release-10.
  • Addition of RFC 6106 (RDNSS) recommendations.
  • Addition of RFC 5555 (DSMIPv6) regarding client based mobility, which is new to 3GPP Release-8.
  • Addition of Router Advertisement MTU option handling.
  • Addition of RFC 5095 that deprecates the RH0.
  • Addition of RFC 5722 and draft-ietf-6man-nd-extension-headers regarding the IPv6 fragmentation handling.
  • Addition of RFC 6583 for Neighbor Discovery denial-of-service attack considerations.
next steps
Next steps
  • Is there interest working on RFC 3316bis?
  • Adopt as a working group document..?
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