[FS#1952] wifi with hidden ssid and mac-filter doesn't work on IOS12; tp-link_tl-wr842nd_v1
openwrt-bugs at lists.openwrt.org
Sun Aug 1 13:11:36 PDT 2021
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FS#1952 - wifi with hidden ssid and mac-filter doesn't work on IOS12; tp-link_tl-wr842nd_v1
User who did this - Jammmmm (Jammmmm)
I can confirm this is an issue, but it is not dependant on iOS. I have tested Android (LG v40 ThinQ - Android 9) and iOS (iPhone 7 - iOS 14.6) and it happens with both devices. I have yet to test with laptops, media boxes (eg. Roku) but can do so if needed (Windows and Linux, possibly Mac OS X too).
I am using a TP-Link Archer C7 v4.0 and OpenWRT 19.07.7 r11306-c4a6851c72 / LuCI openwrt-19.07 branch git-21.044.30835-34e0d65.
My /etc/config/wireless contains a list of valid MAC addresses, such as:
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'my_network'
option encryption 'psk2'
option key 'abcdefg'
option hidden '1'
list maclist '12:34:56:78:90:AB'
list maclist 'CD:EF:01:23:45:67'
list maclist '89:AB:CD:EF:12:34'
option macfilter 'allow'
option isolate '1'
With the above setup, my devices do not connect to the network, even though they should.
If I set hidden to 0, the MAC filtering works fine.
Alternatively I can disable the MAC filter and use a hidden ESSID.
>From what I can see, you can have MAC filtering OR hidden ESSID. Not both at the same time.
I know neither option should be considered a security feature, but I'd like to use them together for peace of mind.
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