Multi-PSK on Hostapd
kazikcz at gmail.com
Tue Jul 27 08:08:37 PDT 2021
keyid= can be used to identify which passphrase a client used. This in
turn can be used to apply selective firewalling rules if so desired.
vlan= filtering/assignment isn't necessarily what you want, or what
you can do, depending on your system and requirements.
Editing the psk file itself does not do anything. If you want to
reload it you can run `hostapd_cli -i wlanX reload_wpa_psk`. It
re-reads and re-applies psk file data only. If a client was connected
with a passphrase that no longer exists in the psk file, it will be
disconnected. Otherwise the client will be left connected.
Not sure what you mean by automating it across 100s of APs though.
On Tue, 27 Jul 2021 at 16:40, Colton Conor <colton.conor at gmail.com> wrote:
> I am trying to figure out the proper way to have multiple PSKs on a
> single SSID. Each passphrase will be used by multiple users, and each
> passphrase will be tied to a VLAN.
> Reading https://w1.fi/cgit/hostap/tree/hostapd/hostapd.wpa_psk, it
> seems the proper way to do this would be:
> vlanid=10 00:00:00:00:00:00 passphrase1
> vlanid=11 00:00:00:00:00:00 passphrase2
> My question is:
> What is the keyid= used for typically?
> Is there a way to add/remove keys using radius instead of manually
> editing the hostapd.wpa_psk each time?
> Does editing the hostapd.wpa_psk kick existing users offline if you
> have to reload / save the file?
> How would you automate this across 100's of APs at a property?
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