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Mobile IP VPN Design Team Update. Gopal Dommety gdommety@cisco.com. VPN Design Team Update. Problem Statement Base solution Optimizations Time Line. Problem Statement Draft. The Design Teams definition of Problem Statement is finished Focused on IPv4 Security Review by Radia Perlman
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Mobile IP VPNDesign Team Update Gopal Dommety gdommety@cisco.com
VPN Design Team Update • Problem Statement • Base solution • Optimizations • Time Line
Problem Statement Draft • The Design Teams definition of Problem Statement is finished • Focused on IPv4 • Security Review by Radia Perlman • Draft is published • draft-ietf-mobileip-vpn-problem-statement-req-03 • Last Call, Review by the WG and IESG
Solution Update • Solution • Base Solution • Optimizations • Base Solution – work completed • Need security review • Last Call for base solution after security review and Problem statement review by WG and IESG • Optimizations to be completed before next IETF
Problem statement Intranet Internet VPN Conc Enterprise DM Zone • IP Sec VPN is used to access the Enterprise network • Seamless connectivity while outside the VPN domain • Seamless mobility when moving from one hotspot to another or to wide area wireless • Seamless connectivity while inside the VPN domain • Mobility while moving between inside & outside a VPN Domain
Scenarios Intranet Internet MSP VPN Conc HA Encrypted IP Tunnel CN Internet Enterprise Airline 1 Ticketing, Baggage DM Zone -Placement of mobile IP and VPN elements: Several scenarios -The scenario shown above is considered in detail. Assumptions Access to the Enterprise from the Internet is via IP Sec VPNs IP Sec may not be always used when MN is within the Enterprise network FAs may be present and the solution has to take care of this scenario NOT CONSIDERED: IP sec instead of L2 encryption (of WLANs)
Issues and Requirements • Issues • With out FA: The IPsec SA needs to be renegotiated on movement • With FA: FA has no visibility into IP sec packets • Problem Statement Draft Includes: • Issues that need to be addressed for providing seamless mobility in this scenario • Requirements for the solution • Working Group Last Call