hi, we use FR with the VMPS module - and i can see the gotchas with trying to run it through some of the other modules. what we have is the VMPS calling post-auth - which runs a PERL module. the PERL module does our dirty work (check validity, return the correct VLAN etc) - but theres no reason why PERL or Python etc couldnt be used to query your MACAUTH server instead (?) alan