Hello, i do have a question (my first on this list) or described situation below is possible, and if yes can somebody provide me tips how to do the freeradius part. I do have a freeradius daemon up and running with only authentication and accounting. I would like to change the setup that also ip address are provided (via the AVP Framed-IP-Address) towards the client. This seems to be possible, but i would like to get the ip address from an external DHCP server. So basically what i would like to achieve is: if authentication request comes in: - let the radius daemon do a request for an ip address from an external dhcp server with the following characteristics - the client mac address should contain the IMSI/MSISDN from the subscriber (request is coming from a GGSN (mobile network)) so doesn't contain a valid client mac address - the username AVP should be used as (i think option 61) within DHCP so it can also be used with the DHCP/DNS integration for name resolving (DDNS) - if the ip address is provided towards the free radius daemon, take this ip address and provide it back within the framed-ip-addres AVP towards the radius client (GGSN) I do have maybe an alternative and that's provide the ip address from the free radius daemon and execute a nsupdate update script to update the DNS, but i think the above described situation is better. thx in advance for your response.