RADIUS: Basics Authentication Data Flow
ISP User Database
ISP Modem Pool
User dials modem pool and establishes connection
UserID: bob Password: ge55gep
UserID: bob Password: ge55gep NAS-ID: 207.12.4.1
Select UserID=bob
Bob password=ge55gep Timeout=3600 [other attributes]
Access-Accept User-Name=bob [other attributes]
Framed-Address=217.213.21.5
The Internet
ISP RADIUS Server
Internet PPP connection established
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