DCN: indication-ipaddress-conf Soohong Daniel Park, SAMSUNG Electronics. IEEE MEDIA INDEPENDENT HANDOVER DCN: indication-ipaddress-conf Title: Information for IP Address Configuration Method Date Submitted: Jan Presented at IEEE session #12 in Hawaii Authors or Source(s): Soohong Daniel Park, Xiaoyu Liu, SAMSUNG Eunah Kim, Junghoon Jee, ETRI Abstract: This document proposes a new information which enables a mobile terminal to prepare its IPv6 address configuration method either stateless or stateful manner.

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DCN: indication-ipaddress-conf Soohong Daniel Park, SAMSUNG Electronics. Overview MIH Function enables a mobile terminal to discover mobile terminal’s network address related information before handover. Several address configuration methods are available for both IPv4 and IPv6 mobile terminal to configure its address.  Static IPv4 address manually  Dynamic IPv4 address configuration (using DHCPv4)  Stateless IPv6 address configuration (using RFC2461)  Stateful IPv6 address configuration (using DHCPv6)  etc... If the IP mobile terminal recognizes its address configuration method before handover, it would be a useful information to prepare its address configuration.  DHCP Discover for DHCPv4  RS/RA exchange for Stateless Auto-Configuration  DHCP Solicit for DHCPv6  No message for address configuration

DCN: indication-ipaddress-conf Soohong Daniel Park, SAMSUNG Electronics. IP Address Configuration IPv4 address can be typically configured by either DHCPv4 or static method.  DHCPv4 is dominant method than static when in motion. IPv6 address can be configured by either stateless method or stateful method.  Stateless method: RFC2461  Stateful method: RFC3315 (DHCPv6) IPv6 Prefix is not mandate for all router If no prefix  Don’t need to do a stateless configuration. (RS/RA exchange)  Rather, a mobile node should send a DHCPv6 DISCOVER message to obtain its IPv6 address. Stateful IPv6 configuration regardless of prefix  Admin manageable IPv6 allocation

DCN: indication-ipaddress-conf Soohong Daniel Park, SAMSUNG Electronics. Approaches Adding a new item into MIH_SAP Primitives  MIH_Handover_Initiate.request (Section )  MIH_Handover_Initiate.response (Section ) Adding a new item into MIIS Information Elements  Highest Layer Information Services (Section 6.3.2)

DCN: indication-ipaddress-conf Soohong Daniel Park, SAMSUNG Electronics. Proposal (Cont’d) Adding a new item to the MIH_Handover_Initiate (Section )  MIH_Handover_Initiate.request/response NameTypeValid RangeDescription CommandSourceUPPER_LAYER_TYPEN/A … ………… IPv6AddrConfStateIPv6 Stateless IPv6 Stateful (DHCPv6) N/AThis requests the IPv6 address configuration method of new network to which handover needs to be initiated. This is valid only for remote commands as well as IPv6. MIH_Handover_Initiate.request (Section )

DCN: indication-ipaddress-conf Soohong Daniel Park, SAMSUNG Electronics. Proposal (Cont’d) NameTypeValid RangeDescription CommandSourceUPPER_LAYER_TYPEN/A … ………… IPv6AddrConfStateIPv6 Stateless IPv6 Stateful (DHCPv6) This identifies the IPv6 address configuration method of new network to which handover needs to be initiated. This is valid only for remote commands as well as IPv6. 0: IPv6 stateless address configuration 1: IPv6 stateful address configuration (DHCPv6) 2: IPv6 manual configuration 3: N/A or reserved MIH_Handover_Initiate.response (Section )

DCN: indication-ipaddress-conf Soohong Daniel Park, SAMSUNG Electronics. Proposal (Cont’d) Adding a new element into the MIIS Elements  Highest Layer Information Services (Table 6 of Section 6.3.2) Name of Information Element DescriptionMedia Types Comments IMS Access (MMS, SMS, Presence, Instant Message, Push-to-Talk, … ) Indication whether specific service is supported or not N/A specific methods, e.g., a new flag, query/response ………… IPv6 Address Configuration Method IPv6 address configuration method supported by the new network: Stateless IPv6 Address Configuration, Stateful IPv6 Address Configuration (DHCPv6), or IPv6 Manual Configuration. N/A specific methods, e.g., a new flag, query/response. Table 6-Highest Layer Information Services

DCN: indication-ipaddress-conf Soohong Daniel Park, SAMSUNG Electronics. Proposal Local Stack Peer Stack MIH Function Peer Stack MIH Function Upper Layers (L3 and above) Prefix available (supporting stateless configuration) Prefix non-available (supporting DHCPv6 configuration) Preparing RSPreparing DHCPv6