I have setup freeradius with openvpn successfully and can authenticate users. I am receiving data in the radacct table with the start and stop session times, however the bandwidth usage is only populated once the session disconnects. I need this information to be updated in intervals so I can manage the bandwidth used by the VPN users.
Does openvpn (with freeradius) support sending Interim-Update with the accounting info? meaning updating the radacct table with user usage / session time at regular intervals (acct-interim-interval)? This is working for pptp users, just not openvpn.