Ipv6 mhmp multi homing with multi prefixes status report draft troan multihoming without nat66 01
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IPv6 MHMP (Multi-Homing with Multi-Prefixes) - Status Report - draft-troan-multihoming-without-nat66-01. IETF79 V6OPS WG November 2010. presenting for design team Ole Trøan, [email protected] 1. Goal. Multiple IPv6 prefixes. IPv6. Internet. Corporate network. Partner networks.

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Ipv6 mhmp multi homing with multi prefixes status report draft troan multihoming without nat66 01

IPv6 MHMP(Multi-Homing with Multi-Prefixes)- Status Report -draft-troan-multihoming-without-nat66-01

IETF79 V6OPS WGNovember 2010

presenting for design team

Ole Trøan, [email protected]

1


Presenting for design team ole tr an ot cisco

Goal

Multiple IPv6 prefixes

IPv6

Internet

Corporate network

Partner networks

  • Give host multiple IPv6 prefixes

    • Belonging to different networks

  • Host does “The Right Thing”

    • Source Address Selection

    • Next-Hop Route Selection

    • DNS Server Selection

    • (Identifying Supporting Hosts)


Presenting for design team ole tr an ot cisco

Our proposed items and their

discussion results in Maastricht

continue discussion

in v6ops WG

  • IPv6 Multiple NSP architecture

    • draft-troan-ipv6-multihoming-without-ipv6nat-01 July 26, 2010

    • O. Troan, D .Wing Cisco Systems, D .Miles Alcatel-lucent,S .Matsushima SOFTBANK TELECOM, T. Okimoto NTT

  • Address selection policy distribution

    • draft-ietf-6man-rfc3484-revise-01 Oct 15, 2010

    • Things To Be Considered for RFC 3484 Revision

    • A. Matsumoto, J. Kato, T. Fujisaki NTT

    • draft-fujisaki-6man-addr-select-opt-00 Jul 8, 2010

    • Distributing Address Selection Policy using DHCPv6

    • T. Fujisaki, A. Matsumoto NTT, R. Hiromi Intec Netcore

  • Route information distribution

    • draft-dec-dhcpv6-route-option-05 Sep 28, 2010

    • DHCPv6 Route Option

    • W. Dec, R. Johnson Cisco Systems, T. Mrugalski Gdansk Univ,A. Matsumoto NTT

  • DNS selection policy distribution

    • draft-savolainen-mif-dns-server-selection-04 Sep 17, 2010

    • Improved DNS Server Selection for Multi-Homed Nodes

    • T. Savolainen Nokia, J. Kato NTT

adopted to WG item

in 6man WG

technical individual solutions (1 to 3)

continue discussion

in 6man WG

adopted to chartered item

in mif WG


In beijing

In Beijing

  • 6man WG on Tuesday

    • Address selection policy distribution

      draft-fujisaki-6man-addr-select-opt-00 Jul 8, 2010

      adopted to WG item (Thank you!)

  • mif WG on Thursday

    • Route information distribution

      draft-dec-dhcpv6-route-option-05 Sep 28, 2010

    • DNS selection policy distribution

      draft-savolainen-mif-dns-server-selection-04 Sep 17, 2010

      New mif charter text including route and DNS issues was already approved. They will be adopted to WG item.

  • Related works:

    draft-vandevelde-v6ops-pref-ps-00

    draft-hain-ipv6-rpf-icmp-00

    draft-wing-v6ops-happy-eyeballs-ipv6-01


Questions

Questions?

IPv6 MHMP

5


Problem source address selection

Backup/Reminder Materials

Problem: Source Address Selection

  • Multiple prefixes on one physical interface

  • Wrong ISP

2001:db8:1000::/36

ISP-A

Internet

2001:db8:1000:1::100

2001:db8:8000:1::100

ISP-B

2001:db8:8000::/36

Dropped by ingress filter (RFC2827)

6


Problem source address selection1

Backup/Reminder Materials

Problem: Source Address Selection

  • Multiple prefixes on one physical interface

  • Disconnected network

2001:db8:a000::1

2001:db8:1000::/36

Internet

ISP-A

2001:db8:1000:1::100

2001:db8:8000:1::100

ASP-B

2001:db8:8000::/36

7


Problem next hop route selection

Backup/Reminder Materials

Problem: Next-Hop Route Selection

IPv6

Internet

Corporate network

Partner network

Provide host with routing information of Partner network – so that Address Selection (RFC3484) can choose correct source address. RFC4191 does that (but there is a problem..)

8


Problem dns server selection

Backup/Reminder Materials

Problem: DNS Server Selection

  • DNS Server Selection

    • Public DNS returns empty answer

    • Private DNS returns IP address

  • Solution: host queries proper DNS server

  • long-existing industry practice

Internet

Query: cnn.com

NSP(Internet)

ASP / VPN

(myasp.com)

Query: myasp.com

9


Problem identifying supporting hosts

Problem: Identifying Supporting Hosts

Backup/Reminder Materials

  • Supporting Host:

    • Chooses proper source address

    • Accepts next-hop route information

    • Supports DNS server selection

  • Network would like to determine:

    • If ‘supporting host’, give it two prefixes

    • If ‘non-supporting host’, give it one prefix and NAT66 its traffic

will be described in draft-troan-multihoming-without-nat66-01

10


Scope of our work

Scope of Our Work

Backup/Reminder Materials

11


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