Hi,
Interesting, RADIUS server is doing the accounting. WLC have the option to set accounting packets to another server. To which Server the WLC should send Accounting packets to ?.
the server that you have configured for accounting, want to store info on, or have other purposes/requirements (eg sending to eg Palo Alto firewall for granting access/holes). FreeRADIUS has a 'accounting copy' virtual server which will forward accounting to another system - so you can store stuff on RADIUS server *and* send it elsewhere if you want - meaning your WLC dont have to be reconfigured and other services dont need to be reconfigured to have the WLC as clients
Here is RADIUS accounting log.
why? we've all seen these nasty things before ;-) note, it has a client IP address in - because NAS tend to send interim-update accounting packets once the DHCP has occured or, if static IP, once the first packets are sent. RADIUS accounting has end client IP address details. auth packets dont (as the client doesnt have an IP *until* its well past the auth stage). alan