Thursday, November 8, 2012

DHCPv6 Prefix Delegation, RADIUS and Shared Usernames

DHCPv6 Prefix Delegation, RADIUS and Shared Usernames:
Jernej Horvat sent me the following question:
I know DHCPv6-based prefix delegation should be as stable as possible, so I plan to include the delegated prefix in my RADIUS database. However, for legacy reasons each username can have up to four concurrent PPPoE sessions. How will that work with DHCPv6 IA_PD?
Short answer: worst case, DHCPv6 prefix delegation will be royally broken.
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