PPPoE with FreeRadius and MySQL

WHY

At my old ISP I setup the PPPoE server with the authentication part .. and I forgot how to do it again at my new workplace .. I'll take notes this time

HOW

Be sure to have your gentoo machine up to date ( emerge --sync ). On the gentoo machine:

Put this in your package.keywords ( so you get the "latest" versions ... they're stable enough ). I'm gonna use MySQL as a backend.

net-dialup/rp-pppoe **
net-dialup/ppp **

Put this in your package.use ( this will set the support for packages

net-dialup/ppp radius
dev-db/mysql -minimal
net-dialup/freeradius mysql threads

And do an "emerge mysql freeradius rp-pppoe". If this is a new mysql installation .. don't forget to "mysql_install_db && /etc/init.d/mysql start && mysql_secure_installation".

I'll only have myself as a client so in /etc/raddb/clients.conf I just changed the "secret".

Add "localhost secret" (replace secret with your secret) in /etc/ppp/radius/servers and set this up in your /etc/ppp/options

lock
mtu 1492
mru 1492
proxyarp
ms-dns your.dns.goes.here
plugin radius.so
plugin radattr.so

In /etc/raddb/radiusd.conf set user and group to "radiusd" ( without quotes ).

In /etc/raddb/sites-enabled/default in the authorize{} section comment out the eap{}, uncomment "sql". In authenticate{} comment out "pam" and "unix". In session {} uncomment "sql".

Also do a chown radiusd:radiusd /etc/raddb/certs

Edit /etc/raddb/sql/mysql/admin.sql and change the default "radpass" to something more convenient to you. Then do

mysql -u root -p < admin.sql
mysqladmin -p create radius
mysql -u root -p -D radius < schema.sql
mysql -u root -p -D radius < nas.sql

Edit /etc/raddb/sql.conf . Set up the "password" field to whatever you set for the admin.sql. In /etc/raddb/sql/mysql/dialup.conf you probably want these:

And now do something in your mysql radius tables (I'm adding myself as a test user):

<source lang="mysql">
insert into `radgroupcheck` (`groupname`, `attribute`, `op`, `value`) VALUES ('dynamic', 'Auth-Type', ':=', 'Local');
insert into `radgroupreply` (`groupname`, `attribute`, `op`, `value`) VALUES ('dynamic', 'Framed-Compression', ':=', 'Van-Jacobsen-TCP-IP');
insert into `radgroupreply` (`groupname`, `attribute`, `op`, `value`) VALUES ('dynamic', 'Framed-Protocol', ':=', 'PPP');
insert into `radgroupreply` (`groupname`, `attribute`, `op`, `value`) VALUES ('dynamic', 'Service-Type', ':=', 'Framed-User');
insert into `radgroupreply` (`groupname`, `attribute`, `op`, `value`) VALUES ('dynamic', 'Framed-MTU', ':=', '1500');
insert into `radusergroup` (`username`, `groupname`) VALUES ('dexter', 'dynamic');
insert into `radcheck` (`username`, `attribute`, `op`, `value`) VALUES ('dexter', 'Password', '==', 'P4ssw0rd');

OTHER RESOURCES

PPPoE Server HOW-TO

FreeRadius with MySQL HowTo Notes

SQL HOWTO - FreeRADIUS Wiki