Hello, We're planning to deploy eduroam centrally for all the university of applied science of west-switzerland. (consists of ~27 schools and 25'000 people). On one side, we will have the central radius servers, connected to the central ldap backend which contains all the user account. On the other side, we will have local radius servers (about 7 pairs of servers, because the schools are grouped regionally and under a central management). The idea is the following : User join the WLAN (802.1x, eduroam). the WiFi controller (nas) contact the local radius for authentication, which in turn contact the central radius to authenticate the user. upon successful authentication, the central radius return the Access-Accept along with some custom attribute about the user. The local radius then perform admission control based on those attributes. (selecting the correct vlan, subnet, ect) So I have two questions : 1. is this implementation possible ? 2. If it is possible, will the inner-tunnel for eap-peap and eap-ttls end on the local or central radius, taking in account that the authentication is performed by the central radius. (I'll go for the central one) Thanks in advance for your answers. Best regards, Olivier B. -- Olivier Beytrison Network & Security Engineer, HES-SO Fribourg Mail: olivier@heliosnet.org