LDAP authentication filter based on source SSID

[Gustavo Vieira Oliveira]

Hello!

I need some help with RADIUS regarding Wireless authentication with 
RADIUS + LDAP.

I need to check if the user has permission to connect to a specific 
SSID, so we check a LDAP attribute for that.

By that, we need to know from which SSID the authentication is being 
requested so we use a specific LDAP Filter to search the base and grant 
or deny the permission.

We tried to use two instances of RADIUS, one per SSID, but the Wireless 
Controller doesn't seem to support it (supports only one AAA per AP).

That's why i'm asking for help in case you people have some alternatives 
or ideas to solve it.

The setup is based on Cisco Wireless Controller 5508.

Thanks in advance!