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Prefix Assignment and distribution of other configuration infromation

Prefix Assignment and distribution of other configuration infromation. Ole Trøan @ Homenet IETF82. Problem:. How to assign stable prefixes to links in an arbitrary topology home network? How to distribute other configuration information (DNS servers etc )?

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Prefix Assignment and distribution of other configuration infromation

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  1. Prefix Assignment and distribution of other configuration infromation Ole Trøan@Homenet IETF82

  2. Problem: • How to assign stable prefixes to links in an arbitrary topology home network? • How to distribute other configuration information (DNS servers etc)? • Given multiple sources of information

  3. Possible Solutions (interim): • Layer 2/RFC6204 topology – null solution • Multilink subnet routing • Hosts routes combined with ND flooding (draft-ietf-ipv6-multilink-subnets-00) • Hierarchical DHCP Prefix DelegationRFC3633 + draft-chakrabarti-homenet-prefix-alloc-00 • Flat DHCP Prefix Delegation RFC3633 + draft-baker-homenet-prefix-assignment-00 • Zeroconf OSPF draft-arkko-homenet-prefix-assignment-01 • NAT (IPv6 NAT or NPT66) • Others

  4. Consider: Flooding vs Request/Reply • Request/Reply may require a God server • Make handling multiple sources of information difficult • Request/Reply requires some way of discovery of the “server”. • Flooding is distributed state. All routers in the network has the same view of the network. Assuming link-state routing here. • Requires “collision detection” • Both assumes fate sharing that the node injecting site-prefix or being the server are co-located with the border router

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