Matching in VSA

[Noah]

Hi there freeradius list,

I need to be able to match a client request with a specific key.  I 
generally do this by matching IPs in the clients.conf file.

Is there any way to match to a Vendor specific attribute?  For instance 
if the request comes in from a specific vendor-id in the request I could 
match based on that and a specific radius secret key is used for the 
radius authentication session.

Cheers,

Noah