Message-ID: <52F99ED7.3090304@huawei.com> (sfid-20140211_045541_321219_95568E2D)
Date: Tue, 11 Feb 2014 11:53:59 +0800
From: Zhao Hongjiang <zhaohongjiang@huawei.com>
MIME-Version: 1.0
To: Ben Greear <greearb@candelatech.com>
CC: <johannes@sipsolutions.net>, <linux-wireless@vger.kernel.org>,
	<zhousiyi@huawei.com>
Subject: Re: Get multiple ip addresses by dhcp for wireless card
References: <52F84DFD.4030602@huawei.com> <52F87608.808@candelatech.com> <52F88FEA.3000102@huawei.com> <52F92696.3030003@candelatech.com>
In-Reply-To: <52F92696.3030003@candelatech.com>
Content-Type: text/plain; charset="ISO-8859-1"
Sender: linux-wireless-owner@vger.kernel.org

On 2014/2/11 3:20, Ben Greear wrote:
> On 02/10/2014 12:38 AM, Zhao Hongjiang wrote:
>> On 2014/2/10 14:47, Ben Greear wrote:
>>> On 02/09/2014 07:56 PM, Zhao Hongjiang wrote:
>>>> Hello,
>>>>
>>>> Is it possible for one station to get multiple ip addresses from AP/Wireless
>>>> router by dhcp? I had tried to add one or more virtual interface for
>>>> phy0 (wlan0, wlan1, wlan2,etc), but only wlan0 can get ip address from AP.
>>>> the following is the steps:
>>>>
>>>> /bin/wpa_supplicant -ddd -iwlan0 -Dnl80211 -c/wifi/wpa_supplicant.conf -B
>>>> /bin/wpa_cli -i wlan0 -p /wlan0
>>>>> add_network
>>>>> set_network 0 ssid "APabc"
>>>>> set_network 0 psk "1111111"
>>>>> enable_network 0
>>>>
>>>> iw wlan0 interface add wlan1 type station 4addr on
>>>> ip link set wlan1 up
>>>> dhcpcd -ABKL wlan0 #works, can get ip
>>>> dhcpcd -ABKL wlan1 #cannot work
>>>
>>> Virtual stations work just fine for me, though I don't use that '4addr' thing.
>>> ...maybe sniff your wlan1 and see if it is sending
>>> out proper DHCP requests (and they are being received by the AP)?
>>>
>>> You have to create a new supplicant config for each virtual station,
>>> or run a unique supplicant instance for each station.
>>
>> I try to follow the instruction which you give and do the following command, but wlan1 
>> cannot associate with AP.
> 
> What driver are you using?  I'm not sure anything other than ath9k
> can do this feature.  Ath5k probably works, and definitely worked
> at one time.  Ath10k supports this to some degree, and will have more
> support in the future.
> 
> You typically have to disable hardware crypt to make this work.
> 
I use bcm4329 chipset and it don't have "Disable HW encryption" options.
any suggestion for this is appreciated, thanks very much.

> Thanks,
> Ben
>