GuyS25
join:2003-12-26
England | reply to joeyconcrete
Re: Enforcing Bandwidth caps (quotas)
It's a one vendor solution but Mikrotik can do this with a script. No PPPoE concentrator or radius server required.
HTH |
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joeyconcrete
join:2004-10-10
| For anybody who's interested I found two relevant RFCs.
RFC 3576 - Dynamic Authorization Extensions to Remote Authentication Dial In User Service (RADIUS)
RFC 2882 - Network Access Servers Requirements: Extended RADIUS Practices
These refer to "Disconnect Messages" and "Change-of-Authorization Messages (CoA)". To basically allows a RADIUS server to disconnect an active session by sending a specially formed packet to the Access server. Certain Cisco device support this (Cisco called it Ping of Disconnect, POD) and I 'think' other vendors do (Chillispot does for instance.
Using this its relatively easy to write a script which monitors the RADIUS accounting-database, when a quota is reached the message can be sent to the NAS. |
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totalaccess
Premium
join:2002-10-04
Elgin, TX
| reply to GuyS25
again we do this at the base where the bandwidth hits the system, on a dual etherne unit instead of attached to any AP. Having your AP do bandwidth control is a bad idea.
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