Hi, I have to configure an async callback solution using Cisco IOS and Freeradius. Up to now, the user can dial in and will be authenticated against my freeradius server. Anything works fine. After setting up the callback things on the router and on the radius server, the user will still be granted access without any callback options. Debugging the cisco callback during the session setup, I will get the message: Se0/1 MCB: Start Se0/1 MCB: Callback not authorized for this user stefancb ... What I've done so far: On WinXP, I left anything default, so that the user will be given the choice, to be called back if the server makes an offer. On the Cisco, I've configured: interface Serial0/1 physical-layer async ip address 10.1.20.200 255.255.255.0 ip nat inside encapsulation ppp ip tcp adjust-mss 1452 async mode interactive peer default ip address pool modemippool no keepalive ppp callback accept ppp authentication chap ! chat-script offhook "" "ATH1" OK chat-script callback ABORT ERROR ABORT BUSY "" "ATZ" OK "ATDT \T" TIMEOUT60 CONNECT \c line 2 flush-at-activation script modem-off-hook offhook script callback callback modem InOut modem autoconfigure discovery transport input all autoselect during-login autoselect ppp speed 115200 The user is configured on the radius server: stefancb Auth-Type := Local, User-Password == "hello" Service-Type = Callback-Framed-User, Framed-Protocol = PPP, Cisco-AVPair = "ip:dns-servers=10.1.1.2", Cisco-AVPair != "ip:wins-servers=10.1.1.2", Cisco-AVPair != "lcp:callback-dialstring=0123456", I've also tested Service-Type = Framed-User, What's wrong here? How do I have to set up the user on my Radius Server? Thank You. Regards Stefan