> in our network is a normal freeradius server for authentication. With
> Packetfence and IEEE 802.1x i would like ask the existing Radius server
> from my packetfence, short:
> 
> Packetfence with local Radius > exsisting Radius > LDAP (ADS)
> 
> If it is possible, where can i find an howto?

This is more FreeRADIUS help you are looking for.

Roughly, you need to proxy the authentication to another server.

Inner-Tunnel Proxying (inner as in 802.1X)

Create a proxy inner-tunnel virtual server

server proxy-inner-tunnel {

authorize {
        update control {
            Proxy-To-Realm := "ExistingRadius"
        }
}

post-auth {
        exec

        perl
        Post-Auth-Type REJECT {
                attr_filter.access_reject
        }

}

pre-proxy {
}

post-proxy {
        eap
}

} # inner-tunnel server block


Then create the realm in proxy.conf
realm ExistingRadius {
     authhost = <ip>:1812
     secret = <secret>
}

Change the eap.conf to point to the proxying virtual server
 peap {
            default_eap_type = mschapv2
            copy_request_to_tunnel = yes
            use_tunneled_reply = yes
            proxy_tunneled_request_as_eap = yes
            virtual_server = "proxy-inner-tunnel"
        }

Something like that.

-- 
Olivier Bilodeau
obilod...@inverse.ca  ::  +1.514.447.4918 *115  ::  www.inverse.ca
Inverse inc. :: Leaders behind SOGo (www.sogo.nu) and PacketFence
(www.packetfence.org)

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