Hello, I have a setup where th user initiates DHCP request to the NAS. The NAS then tries to authenticate the user using regular radius requests (basicilly Access-Request with username=macaddr). If authenticated the NAS relay the dhcp request to a dhcp server That works. I want to know if there is any *standardized* way to specify the NAS the DHCP server to relay the DHCP request to, using attributes in the radius Access-Accept? I have found dhcp dictionnary (talking about gateway DHCP to RADIUS) but am not sure it is intended to do that. If not does anybody knows if it's possible with redback xxxSE BRAS? Regards. -- <http://www.horoa.net> Alexandre Chapellon Ingénierie des systèmes open sources et réseaux. Follow me on twitter: @alxgomz <http://www.twitter.com/alxgomz>