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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
PPT Version