This document describes IP-LOC, a proposed extension to IPv6 header
which suggests adding optional geo-location field, in order to
enhance existing geo-location based IP service as well as adding new
The current method of determining geo-location of IP traffic is
through RIR (Regional Internet Registry) database, this information
is not very accurate as it depends on how the ISP registers its IP
subnets, that is normally done in a country/city format.
It also assumes that in the future, GPS capability could be added to
the router itself (just like smart phones) and packet marking and
classification based on geo-location will be required.
QoS, firewall and routing based on geo-location might also be
required in the future when mobile routers move from one geo-location
to another, which has a different policy.