I have here a WLan setup with a WDS, some 40 Accesspoints, an ACS 4.1 server and a Windows Domain Controller which has the users configured.
I have a group mapping in ACS configured which points to a small group in the ADS.
The groupmapping in ACS points to a specific group in ACS.
There I've configured the following:
- ssid=xx-200 (the name of the SSID the clients connect)
- OU=pers; (this is not the special group where those users are in, but they are also in this one)
- Tag 1 Value Vlan
- Tag 1 Value 802
- Tag 1 Value 200 (the Vlan in which they should go)
The good thing is, authentication with username password works.
The bad thing is, every user can authenticate and get into this SSID instead of only the users in the special group which points to this groupmapping.
The other ADS groups also point to other ACS groups, but they don't have the above values ([009\001] cisco-av-pair,  Tunnel-Type,  Tunnel-Medium-Type,  Tunnel-Private-Group-ID) configured.
The logfile from the ACS also shows that the wrong users are mapped into the correct group like they should, but they still get access.
Here the WDS configuration:
aaa group server radius RADIUS_GROUP_WDS_RADIOMANAGEMENT
server 10.1.1.30 auth-port 1645 acct-port 1646
server 10.1.2.30 auth-port 1645 acct-port 1646
aaa authentication login METHOD_WDS_RADIOMANAGEMENT group RADIUS_GROUP_WDS_RADIOMANAGEMENT