Subscriber Services: DHCPv6 subscriber class differentiation with the DHCPv6-Options VSA (26-207)

You can use VSA 26-207 to differentiate between different classes of subscribers during DHCPv6 relay authentication. Configure your RADIUS server to include the following information in DHCPv6 Option 17: 

•  Juniper Networks enterprise number, 2636 
•  Suboption 5, JDHCPD_VS_OPT_CODE_KT_SUBSCRIBER_CLASS 

You set a different value for suboption 5 for each class. The VSA conveys this Option 17 information in the Access-Accept message RADIUS returns during DHCPv6 subscriber authentication. The DHCPv6 relay agent extracts the Option 17 information and passes the information to the DHCPv6 local server in the Relay-Forward header. In earlier releases, only the DHCP local server supports VSA 26-207; only suboption 1 (hostname) and suboption 4 (location) are supported.