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Title : Using DHCPv6 and AAA Server for Mobile Station Prefix Delegation
Author(s) : B. Sarikaya, F. Xia
Filename : draft-sarikaya-16ng-prefix-delegation-01.txt
Pages : 11
Date : 2007-3-6
In the 802.16 Per-MS prefix model, one prefix can only be assigned to
one mobile station by an access router and different mobile stations
can't share a prefix. Managing Per-MS prefixes is likely to increase
the processing load at the access router. Based on the idea that
DHCPv6 servers can manage prefixes as well as addresses, we propose a
new technique in which the access router offloads delegation and
release tasks of the prefixes to an DHCPv6 server. The access router
first requests a prefix for an incoming mobile station to the DHCPv6
server. The access router next advertises the prefix information to
the mobile station with a Router Advertisement message. When the
mobile station leaves, the prefix is returned to the DHCPv6 server.
We also describe how prefix delegation can be done by AAA servers as
an alternative technique.
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