System for authenticating and authorizing access to and accounting for wireless access vehicular environment consumption by client devices
A system and method are disclosed for authenticating and authorizing access to and accounting for consumption of bandwidth for IPv6 connectivity to the Internet over Wireless Access Vehicular Environment (WAVE) service channels by client devices using an Authentication, Authorization and Accounting (AAA) server. The AAA server authenticates and authorizes client devices to access WAVE service channels, and accounts for bandwidth consumption by the client devices using WAVE service channels to access the Internet. The AAA server enables an RSU infrastructure operator to quantify wireless bandwidth consumption by in-vehicle devices using the WAVE Service Channels, on a per-device basis.
1. A Roadside Unit (RSU) configured with an extended IPv6 Management Information Base (MIB) operable to determine packet and byte count statistics for Wireless Access Vehicular Vehicle (WAVE) bandwidth usage per client device, said client device being either an On-board Unit (OBU), a non-Dedicated Short-Range Communications (DSRC) mobile device that is IPv6-reachable through an OBU, or a DSRC-enabled user device; said IPv6 MIB being also operable to retrieve, for each datagram received from an IPv6 node operating in a route optimization mode of Mobile IPv6, a fixed “home address” of the mobile node carried in the Mobile IPv6 routing header of said datagram; said RSU being operable to accumulate, in Non-volatile Random Access Memory (NOVRAM), said packet and byte count statistics for WAVE bandwidth usage per client device and periodically to send said statistics to an Authentication, Authorization and Accounting (AAA) server, encapsulated in a UDP/IP message, only refreshing said NOVRAM table when the AAA server has acknowledged reception of said UDP/IP message.
2. The RSU as defined in claim 1 , wherein a protocol stack of the RSU including IPv6, TCP, and Border Gateway Protocol (BGP) is fully implemented.
3. The RSU, as defined in claim 2 , operable to process Remotely Triggered Black Hole (RTBH) filtering instructions from the AAA server within a same Autonomous System.