Hi, I want to use freeradius1.0.4 to auth and acct mpd_3.18_2 PPTP VPN (on FreeBSD). But I have a problem. In the log file, it displayed the following messages: " Jul 13 10:32:53 vpn mpd: [pptp1] RADIUS: using /usr/local/etc/raddb/radiusd.conf Jul 13 10:32:53 vpn mpd: [pptp1] RADIUS: rad_config: /usr/local/etc/raddb/radiusd.conf:23: invalid timeout Jul 13 10:32:53 vpn mpd: [pptp1] CHAP: sending FAILURE Jul 13 10:32:53 vpn mpd: [pptp1] LCP: authorization failed " I check radiusd.conf:23 . " # The per-request variables are of the form %{Attribute-Name}, and # are taken from the values of the attribute in the incoming # request. See 'doc/variables.txt' for more information. prefix = /usr/local <----------------------line 23 exec_prefix = ${prefix} sysconfdir = ${prefix}/etc localstatedir = ${prefix}/var " Anyone can tell me what it means and how can I resolve it? Thanks wangyan