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6to4 Provider Managed Tunnels draft-kuarsingh-v6ops-6to4-provider-managed-tunnel-02

6to4 Provider Managed Tunnels draft-kuarsingh-v6ops-6to4-provider-managed-tunnel-02. Victor Kuarsingh, Rogers Communications Inc. Level Set. Native IPv6 is still the best option for IPv6 services Native IPv6 is “NOT” available or deployable everywhere right now (working on that)

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6to4 Provider Managed Tunnels draft-kuarsingh-v6ops-6to4-provider-managed-tunnel-02

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  1. 6to4 Provider Managed Tunnelsdraft-kuarsingh-v6ops-6to4-provider-managed-tunnel-02 Victor Kuarsingh, Rogers Communications Inc

  2. Level Set • Native IPv6 is still the best option for IPv6 services • Native IPv6 is “NOT” available or deployable everywhere right now (working on that) • Vendor Equipment/Software (Network Side) • CPE (install base, buggy IPv6 code) • Transition Technologies often requires CPE • 6to4 is out there • Hosts, gateways/CPEs (in use) • 6to4 is challenging for providers who have CGNs in place or soon will have (IPv4 depletion) • IPv6 connectivity does not solve the entire IPv4 challenges

  3. Document Scope (Adjustments) • Original scope of document included: • Unmanaged CPE with 6to4 Turned(Challenged connectivity) • CPEs with 6to4 Turned on Behind CGN • Draft now concentrates on main use case of 6to4 behind CGN • Where Global IPv4 addresses are Used (Legitimate and less legitimate use cases) • Transparency not an issue here (broken anyways) • Can still technically be used for non-CGN use case (Not Recommended) • No direct participation required from external networks

  4. Technical Points (Brief) • 6to4-PMT operates northbound of 6to4 (RFC3068) clients • Combines normal 6to4 with NAT66 operation • No Checksum Neutral mappings / devcode utilized RFC3022 Checksum Adjustment • Translates 2002: ADDR to 2001:db8 (Provider Assigned) ADDR • Low Cost • updates current 6to4 relays if Linux based as example – in place upgrade • If used in non-CGN model, may help alleviate challenges related to neighboring networks • draft-carpenter-v6ops-6to4-teredo-advisory (typo in draft reference)

  5. Testing Results (PreProd Environment) • The concept works as expected (RUNNING CODE, free to use - open) • Client to Server options operate well • Able to “undo” challenges related to 6to4 behind CGN • Does not fix peer-peer 6to4 endpoint communication (broken anyway) – unless both sides do NAT • Runs on same system as normal 6to4, • where only policy triggered endpoints are subject to translation (provider dependent) • Some Considerations • Some peer to peer considerations (PMT to 6to4) • Referrals to local 2002:: from PMT subject host • Transparency if used in general (non-CGN) environment

  6. Next Steps • WG Document? • If yes then…. • WGLC • If no then… • Chairs

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