Possible approach for improving location privacy and optimized routing support (Optional) route optimization by reverse tunneling to Tunneling Agents (TA) TA is outside of home link TA maintains bindings for HoAs not matching TA prefix MN‘s home link (and HoA) does not change TA can e.g. be co-located with MN1‘s HA or MN2‘s HA local HA or MAP MN1 MN2 MN1‘s HA MN2‘s HA/ MN1‘s TA Binding Cache HoAMN1?CoAMN1 (H) Binding Cache HoAMN2?CoAMN2 (H) HoAMN1?CoAMN1 (TA) Fig: Data path in case TA is co-located with MN‘s HA |