Mobile IPv6 enables IPv6 mobile nodes to continue using a given "home address" in spite of changes in its point of attachment to the network. These changes may cause delay, packet loss, and also represent overhead traffic on the network. Previously the MIPSHOP WG worked on two technologies to address these issues. Hierarchical Mobile IPv6 (HMIPv6, RFC 4140) reduces the amount and latency of signaling between a MN, its Home Agent and one or more correspondent nodes. Fast Handovers for Mobile IPv6 (FMIPv6, RFC 4068) reduces packet loss by providing fast IP connectivity as soon as the mobile node establishes a new point of attachment at a new link. As part of its previous set of work items, MIPSHOP published these two protocols as experimental RFCs. Further implementation work by the community has increased the understanding of how FMIPv6 behaves or should behave on other link layers, and in general. Similarly, further implementation and experimentation with HMIPv6 has resulted in better understanding of the protocol. Accordingly, MIPSHOP will continue work on HMIPv6 and FMIPv6 and the necessary extensions in order to publish them as proposed standards. Additionally, the IEEE 802.21 Media Independent Handoff (MIH) working group aims at providing services to assist with handoffs between heterogeneous link-layer technologies, and across IP subnet boundaries. The information exchanges defined by IEEE 802.21 are classified as MI (Media Independent) Event Service (MIES), MI Command Service (MICS), and MI Information Service (MIIS). The MIIS provides topological and location-related information of service networks. The MIES provides timely communications of wireless environment information via the delivery of events originating across the link-layer or farther away. The MICS is an analogous service for commands which can change the state of the wireless link or of a host's point of attachment, potentially triggering further event generation. MIH services can be delivered through link-layer specific solutions and/or through a "layer 3 or above" protocol. MIPSHOP will define the delivery of information for MIH services for this latter case. Notice that this allows the network information to reside anywhere (not necessarily across the link-layer hop), and enables MIH services even in the absence of the corresponding link-layer support. An L3 based mechanism to identify a valid information server is also required. A liaison with IEEE 802.21 has been established, and access to the IEEE 802.21 drafts is granted to mipshop members. Interested members need to send a request to the WG chairs in order to obtain a copy of the current IEEE 802.21 draft. The MOBOPTS Research Group in the IRTF is chartered to work on optimizations related to Mobile IPv6 and IP handoffs among other things. The MIPSHOP WG will take mature proposals from the MOBOPTS group and standardize them in the IETF on a case-by-case basis. One such proposal on improving the Mobile IPv6 Return Routability procedure by reducing the round trip times required to complete the procedure, and increasing the length of time before the procedure needs to be run again, has already been taken up the MIPSHOP WG and stadardized. Scope of MIPSHOP: The working group will: 1. Revise the specification of HMIPv6 (RFC 4140) protocol to advance it to Proposed Standard. This implies: * Define the use of IKEv2 for MN-MAP security * Streamline and refine the current HMIPv6 specification. Document: draft-ietf-mipshop-4140bis 2. Revise the specification of FMIPv6 protocol (RFC 4068) to advance it to Proposed Standard. * Work on mobile node - access router security using both the AAA infrastructure, and keys derived from SeND Documents: draft-ietf-mipshop-handover-keys-aaa, draft-ietf-mipshop-handover-key * Streamline and refine the current FMIPv6 specification Document: draft-ietf-mipshop-fmipv6-rfc4068bis 3. Work on the application of FMIPv6 on two examples link-layers for advancement as Informational RFCs: * IEEE 802.16e (and WiMax) * 3G CDMA 2K networks Documents: draft-ietf-mipshop-fh80216e, draft-ietf-mipshop-3gfh 4. Work on areas of mutual interest to IEEE 802.21 and MIPSHOP: * Complete the problem statement, and a specification on transport of IEEE 802.21 services over IP. Documents: draft-ietf-mipshop-mis-ps (Problem Satement), draft-ietf-mipshop-mih-support (transport of 802.21 services over IP, including security aspects) 5. Standardize mature proposals from MOBOPTS Research Group. Adoption of specific proposals requires rechartering.