Configure as access point mode / master mode NOT successful

[sean78901]

Hi, thank you for your work. I followed the instructions and the installation of the 8192cu fix is successful because I can connect wirelessly to the internet. However, I am unable to configure the 8192cu as an Access Point for my other devices to access the internet. In particular, I am unsuccessful in setting the 8192cu mode to either ap or to master (see questions (3) and (4) below respectively).

Ubuntu 14.04 ID 0b05:17ba ASUSTek Computer, Inc. (Asus USB-N10 Nano Wireless-N USB Adapter)

(1) Does your module support my hardware / Is my device ID on the supported list?

(2) lsmod | grep 8192cu gives: 8192cu 527333 0 Is this a problem too?

(3) To check whether AP mode is supported, I tried iw list and iw dev but the interface / device does not show up, and therefore I am unable to confirm that the 8192cu supports AP mode. Is the 8192cu fix under the mac80211 framework? If so, then wouldn't iw list not showing the 8192cu be a problem?

(4) To change mode to master, I tried sudo iwconfig wlan1 mode master . sudo iwconfig confirms that the mode has been changed to master , but the moment I use Network Manager to connect, the mode reverts back to managed .

(5) I tried the instructions in the following URL (particularly the last step of Step 2) to configure the 8192cu as an Access Point, but to no avail - http://askubuntu.com/questions/180733/how-to-setup-an-access-point-mode-wi-fi-hotspot

(6) Do I have to use hostapd or would the instructions in the URL above (which is a simple hack) work for the 8192cu to be configured as an Access Point?

Appreciate your assistance. Thank you.

[dlech]

Duplicate of #27.

[sean78901]

Hi dlech, Thank you for the comment. I saw #27 before I posted for help, but dismissed it as I didn't understand what the link back to realtek meant. On second read, was your comment in #27 referring to a solution akin to this -

http://wannabe-nerd.tweakblogs.net/blog/10870/wifi-access-point-using-a-realtek-8192cu-based-usb-wifi-dongle-with-a-raspberry-pi.html ?

If yes, then, of the following parts of the solution (in the link above) - (1) Installation and configuration of bridging (2) Install kernel sources (3) Download sources and compiling the rt8192cu driver / kernel module (4) Download sources for hostapd and compile them (5) Configuration , which parts can I skip?

Can I just do the steps in parts (1), (4) and (5) and skip (3) given that I have already installed the 8192cu fix provided by pvaret? What about part (2) - can I skip part (2)?

Thank you.

[dlech]

Yes, you can skip part (2) - it is only needed for raspberry pi. And yes, if you have already installed the 8192cu driver, then you don't have to do step (3) again.

[sean78901]

Hi dlech, Thank you once again. I am having a problem that I believe is not related to the 8192cu driver fix, but for completeness, I shall describe my problem here even as I seek an answer at an appropriate forum. Basically I am trying to accomplish the following setup -

wireless internet ---> wlan0 of Ubuntu computer "bridged to" wlan1 of same Ubuntu computer ---> device with wifi

The reason for this setup is that the wireless internet is a WPA2 Enterprise network which my device with wifi cannot connect to. (The device with wifi also cannot connect to peer-to-peer networks or ad-hoc networks.) Also, the wireless internet source has no whitelist / blacklist and therefore there is no issue with it seeing the device's MAC address (if necessary), and no issue with it assigning an IP address to the device (if necessary). It is the device that has an issue with WPA2 Enterprise authentication.

wlan0 is an Intel wireless chipset / interface which cannot be set to either access point mode or master mode, and therefore is used to connect to the WPA2 Enterprise internet source. wlan1 is the Asus / RealTek 8192cu installed with pvaret's fix and is to be set to access point mode. Obviously, the "bridge" between wlan0 and wlan1 is not meant to be wireless, as both are on the same computer.

(1) I believe brctl cannot bridge a wireless interface (wlan0) to another wireless interface (wlan1). Is this correct? (2) If brctl cannot be used, can I still use hostapd? (3) If brctl cannot be used, what should I be looking for to accomplish the setup described above? (4) Would any of the following be a part of the solution to my problem - (a) dnsmasq to serve DHCP (b) hostapd (c) static IP address (for wlan1 ???) (for the device connected to wlan1 ??) (d) NAT (Network Address Translation) (e) iptables (f) IP Masquerade (g) sudo iw set dev wlan0 4addr on (h) WDS (wireless distribution system) ?

Thank you.

[sean78901]

[Solved] I used iptables instead of brctl. Issue closed.