I have some issues with lexmark printers, which should be authenticated via MAC - address. The authentication works fine, but after after some time (maybe some hours) the printers aren`t available. The printer doesn`t send any packets, and so is a kind of passive client. I also couldn`t see the mac adress of the printer on the switch, so i have changed the session-timeout for the mac auth to 240 seconds, to get more communication. The reauth happens every 240 seconds, but the printer has the same problem, it isn`t available after some time. i have to plug off an on the printer to get the connection working again. we have more different models of lexmark printers and the same problem.
I think the main problem is, that the printer doesn`t send active packets to the network. So the connected switch loses the mac of the printer..
I have a procurve switch 2920 with firmware 16.02.18.
What is the recommended setting for these "passive clients" and mac out?
i have my clearpass policy attached.