[tac_plus] Tacacs and MRV Labdadriver

[Peter Tavenier]

Hi, 

Does anyone on the list have experience with Tacacs and MRV Labdadriver 800? 
We're running tac_plus on linux, but I don't get is working. 

We get message like: 
Tue May  8 08:05:30 2012 [1182]: connect from 192.168.x.x [192.168.x.x]
Tue May  8 08:05:30 2012 [1182]: pap-login query for 'admin' unknown from 192.168.x.x rejected
Tue May  8 08:05:30 2012 [1182]: login failure: admin 192.168.x.x (192.168.x.x) unknown

The "from 'admin' unknown" sound weird to me. Any suggestions where to look at? 

Best regards,
Peter