IETF's mobility-related working groups include MIP6, MIPSHOP, SEAMOBY, DNA, and NEMO. MULTI6 is not specifically concerned with mobility, but it discusses a similar set of problems that come along with allowing hosts to change their IP addresses. This overview summarizes the objectives of the MIP6, MIPSHOP, SEAMOBY, DNA, NEMO, and MULTI6 working groups. It illuminates relationships between different working groups and presents current activities. A synopsis is given in the second-tolast section. The tailing reference section gathers seminal working-group documents which may be of further interest to the reader.