I am in the process of migrating the remote access VPN (IPSec) from VPN 3020 to ASA. Local authentication works fine. If I add IAS radius servers for authentication, then I get the following error message
Secure VPN connection terminated by Peer.
Reason 433: (Reason Not Specified by Peer)
Packet capture shows IAS server returning "access-reject". IAS server is configured the same way as the VPN 3020.
I am running 8.0(0) code on the ASA. Any idea what is causing it?
Did you specified the shared secret between asa and IAS?
Did you specified in RADIUS server that ASA is allowed to send queries? In other word did you specified that ASA is a valid NAS?
I hope this helps.