hostapd -2.3 as radius server

Jouni Malinen j
Sun Dec 7 11:32:52 PST 2014

On Sun, Dec 07, 2014 at 12:15:18AM +0530, Sarah Thomas wrote:
> When hostapd is launched as radius server, it fails with:
> *"Failed to set interface 3 to mode 2: -19(No such device)"*

> *Hostapd.conf:*
> Interface=eth0
> eap_server=1
> eap_user_file=hostapd2.hotspot
> ca_cert=cas.pem
> server_cert=server.pem
> private_key=server.key
> radius_server_clients=radius_clients
> radius_server_auth_port=1813

That is asking hostapd to configure eth0 using the default driver
interface. Since it looked like you included support for more than one
driver interface in the build, you will need to specify that this
RADIUS-server-only case does not use any real driver operations. You can
do that by adding the following item into hostapd.conf:


Jouni Malinen                                            PGP id EFC895FA

More information about the Hostap mailing list