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Proposed IP Address Assignment Methods and Types for TGai Authentication

This document outlines proposed indications for IP address types and assignment methods in TGai authentication by Qualcomm. It discusses a streamlined approach for concurrent authentication and IP address assignment, utilizing messages for authentication and options for encryption of IP address assignment requests. Additionally, it suggests enhancements to Beacon/Probe Response frames to indicate supported IP address types and methods, including DHCP and RS/RA options. The proposal aims to enable flexibility in IP address assignment for various network deployments.

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Proposed IP Address Assignment Methods and Types for TGai Authentication

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  1. Fast Authentication in TGai Authors: • Date: 2011-11-07 Qualcomm

  2. Abstract • This document proposes indications for IP address types and assignment methods Qualcomm

  3. Conformance w/ TGai PAR & 5C Qualcomm.

  4. Previous contributions such as 11/1160r3 to 11ai for FILS feature proposed concurrent authentication and IP address assignment procedure: • Single pair of messages of authentication • Use of Beacon/ProbeResp to send Anonce • Use of Association Req/Resp to send ULI • FILS should not limit the IP address assignment method and IP address assignment type chosen for different deployments • In addition, STA may choose to encrypt IP address assignment request • STA may include private information in the IP address assignment request, which may need to be encrypted • IP address assignment response is encrypted • We propose to indicate the IP address type and assignment methods supported by Access Point using Beacon/Probe Response • Allows different existing IP address assignment methods for FILS • New IP address assignment may be added as an option (977) • See 1160r3 for call flow on how DHCP & RS/RA may be used for IP address assignment as an illustrative examples Background Qualcomm

  5. Add extended capability bits in Beacon and Probe-Response frames • IP address type Supported (2 bits): • IPv4, IPv6, IPv4v6 • IP address method supported (TBD): • DHCP with Rapid Commit • DHCPv6 with Rapid Commit • RS/RA for IPv6 • [more may be added] • An FILS AP will include the above information elements in Beacon/Probe Response Proposal Qualcomm

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