doc.: IEEE /0598r0 Submission May 2012 Steve Grau, Juniper NetworksSlide 1 Layer 3 Setup with Dynamic VLAN Assignment Date: Authors:

doc.: IEEE /0598r0 Submission Abstract Many existing wireless LAN systems support assigning STAs to VLANs based on authorization data returned in an Access Accept message from the Authentication Server. In configurations that utilize this feature, layer 3 setup (eg. DHCP) is not possible until after the AP receives VLAN assignment data in the Access Accept message. Furthermore, in systems that support VLAN tunneling, there may be a tunnel setup delay before L3 setup can begin. This submission proposes amending the TGai Functional Requirements and Clause 5 of the TGai SFD to ensure that systems that provide dynamic VLAN assignment can comply with FILS by supporting other FILS features that are not in conflict with dynamic VLAN assignment functionality. May 2012 Steve Grau, Juniper NetworksSlide 2

doc.: IEEE /0598r0 Submission Dynamic VLAN Assignment May 2012 STAAPAS Auth Request Auth Response Assoc Request Assoc Response EAP Identity Request EAP Identity Response Access Request Access Accept (with VLAN assignment) EAP Success EAP Method Specific Exchange VLAN Tunnel Setup Time Point at which L3 setup (eg. DHCP) can begin Slide 3Steve Grau, Juniper Networks

doc.: IEEE /0598r0 Submission Proposal If concurrent L3 setup is supported by FILS, make it an optional feature, allowing other FILS features to be supported when concurrent L3 setup is not possible. Provide a method for an AP to signal whether it supports concurrent L3 setup. Consider specifying a method for APs to hold off client L3 setup to allow for VLAN tunnel setup to complete prior to beginning L3 setup procedures. May 2012 Steve Grau, Juniper NetworksSlide 4

doc.: IEEE /0598r0 Submission Motion 1 Move to add the following to text to the end of Clause of TGai Functional Requirements document (11-11/0745r5): “[Req ] The TGai amendment shall make optional any FILS feature that would necessitate an AP to have knowledge of the VLAN a STA will be assigned to prior to final authentication of the STA. Note-The intent of this requirement is to enable systems that dynamically assign STAs to VLANs to be FILS compliant and to support other FILS features.” Moved: Seconded: Vote: Y/N/A May 2012 Steve Grau, Juniper NetworksSlide 5

doc.: IEEE /0598r0 Submission Motion 2 Move to add the following to text to the end of Clause 5 of TGai Specification Framework document (11-12/0151r07): “5.x Compatibility with Dynamic VLAN Assignment FILS IP address assignment shall be optional if it would necessitate an AP to have knowledge of the VLAN a STA will be assigned to prior to final authentication of the STA. ” Moved: Seconded: Vote: Y/N/A May 2012 Steve Grau, Juniper NetworksSlide 6

doc.: IEEE /0598r0 Submission Straw Poll Do you support specifying, as part of the TGai amendment, a method for APs to signal to STAs when they may start L3 setup in order to account for VLAN tunnel setup delays? Yes/No/Abstain May 2012 Steve Grau, Juniper NetworksSlide 7