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Cisco PublicBRKBBA-2006
Subscriber Identification
Subscriber & Network elements need to be identified for
Access control / Policy Enforcement
Security / Trace-ability
Billing
This can be done via MAC addresses
Or via User login using SSG (Service Selection Gateway) or a
Portal
Requires Service Portal for Authentication, not transparent
Via PPPoE and Radius
Requires BRAS, and PPPoE Client
Or via support of DHCP Option 82
Access switch automatically populates Option 82 with switch and port ID when
relaying DHCP request
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