Regarding working configuration on DHCP option 82 in linux dhcp server

sthaug at sthaug at
Thu Jul 9 10:46:05 UTC 2015

> Actually my objective is - when Dhcp discover packet reaches with option
> 82, Dhcp server should Forward that discover packet to Radius server for
> authentication , Radius server authenticate the attributes related to
> option 82 , if authentication successful , then Radius will get back to
> Dhcp server and then only i will get a IP from Dhcp server.

This mode of operation is normally handled by Relay agent and other
associated machinery on the BRAS itself. I don't believe you can get
ISC DHCP to do this directly.

Steinar Haug, Nethelp consulting, sthaug at

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