Не могу настроить auth_radius на apache2 на ubuntu 10.10

<IfModule mod_auth_radius.c>
AddRadiusAuth 192.168.1.1 xxxxx 3:5
AddRadiusCookieValid 360
</IfModule>

        <Directory /var/www/>
                Options Indexes FollowSymLinks MultiViews
                AllowOverride None
                AuthType Basic
                AuthName "auth"
                AuthBasicAuthoritative off
                AuthRadiusAuthoritative on
                AuthRadiusActive On
                Require valid-user
        </Directory>

[Tue Feb 01 12:23:50 2011] [warn] AuthRadiusActive set, but no RADIUS server IP - missing AddRadiusAuth in this context?
[Tue Feb 01 12:23:50 2011] [crit] [client 192.168.6.48] configuration error:  couldn't check user.  Check your authn provider!: /