Interface = wlan0 hw_mode = g channel = 10 ieee80211d = 1 country_code = FR ieee80211n = 1 wmm_enabled = 1 # First AP ssid = test1 auth_algs = 1 wpa = 2 wpa_key_mgmt = WPA-PSK rsn_pairwise = CCMP wpa_passphrase = somepassword # Second AP # the name of the new interface hostapd will create to handle this AP bss = wlan1 ssid = test2 auth_algs = 1 wpa = 1 wpa_key_mgmt = WPA-PSK wpa_passphrase = someotherpassword # Third AP # the name of the new interface hostapd will create to handle this AP bss = wlan2 ssid = test3 # since there is no encryption defined, none will be used Proper use of the 5GHz bandĭepending on where you live, using the 5GHz band for an AP has limitations:
Hostapd only creates wireless Ethernet switches, it does not know about the IP protocol or routing.Īn AP's interface really is just an Ethernet interface: Assign an IP to the AP itself, it is not hostapd's job to do that.Assign IPs to the devices connecting to the AP, a dhcp server is needed for that.
But it can create two APs with the same SSID Create a dual-band AP, even with two cards.Multiple APs on the same card will share the same channel Create multiple APs on different channels on the same card.This requires a card with two radios though, which is pretty rare (but hostapd supports it) - if the card creates two wlanX interfaces, you might be lucky Use 2.4GHz and 5GHz at the same time on the same card.Create one AP on one card and another AP on a second card, all within a single instance of Hostapd.Create multiple APs on the same card (if the card supports it, usually up to 8).An AP can have multiple SSIDs, making it look like multiple APs, but all will share the same band AND channel.An AP using the 5GHz band can be a, n, ac and ax at the same time (if the hardware supports it).An AP using the 2.4GHz band can be b, g, n and ax at the same time (if the hardware supports it).An AP can only use one band at a time: 2.4GHz OR 5GHz, a so-called "dual-band AP" is just one AP at 2.4GHz and another at 5GHz.
Root # iw list | grep "Supported interface modes" -A 8 Supported interface modes:Ī brief reminder of the technology involved.Ĭan use multiple streams to increase speed (if both client and AP have more than one antenna)Ĭan use multiple streams, supports higher clients density
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