Ciao. Just wondering if FR supports IPv6 addresses since I'm unable to start the server when using IPv6. I've changed (or uncommented) a couple of lines in radiusd.conf under 'listen' section: ipv6addr = :: and then I tried to start the server but no way. It works ok when using IPv4. FR spits out: Failed binding to authentication address 0:0: .... port 1812: Bad file descriptor. FR server has been built with IPv6 support. Another question is: are you aware of any (client) tool for testing FR when using IPv6 addresses? eapol_test doesn't seem to know anything about :: or ::1 Do the below lines from radiusd.conf require any change when IPv6? ... ... detail { detailfile = ${radacctdir}/%{Client-IP-Address}/detail-%Y%m%d.log } ... ... Sorry about asking many questions at the same time but they're all related. Sergio.