I've recently set up a raspberry pi 3 as a simple wifi router, using:
- Ubuntu 16.04
I've followed the following tutorial and all went pretty smooth: https://frillip.com/using-your-raspberry-pi-3-as-a-wifi-access-point-with-hostapd/
But now i wanted to take a next step and start white- or blacklisting specific MAC addresses. The way to do this seemed to be to configure hostapd for it:
macaddr_acl=0 accept_mac_file=/etc/hostapd/hostapd.accept deny_mac_file=/etc/hostapd/hostapd.deny
And then add the MAC address to the referenced file. However this seems to be completely ignored, no matter wheter i restart, reload, try whitelisting (macaddr_acl=1) instead of blacklisting...
I did find people with similar issues on different hardware, because of madwifi. But the setup on raspberry pi does use the nl80211 driver instead of madwifi.
So right now, i assume it might be something specific to the wifi chip used in raspberry pi 3. Therefore posting it here, hoping that someone else faced the same challenge and found a way around it. :)
Finally: i'm aware that this is not a good way to do wifi security, but i'm not trying to do this to prevent malicious connections. I want to use it to prevent a device that i've forcefully disconnected (hostapd_cli deauthenticate) from immediately reconnecting.