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Mercusys MW150US V2 ID 2c4e:0102
After some trial and error my Mercusys MW150US V2 is working in a stable setup in AP mode with Kernel 3.8.0-19-generic i386.
Ubuntu 13.04 (GNU/Linux 3.8.0-19-generic i686) running in VirtualBox with 256MB RAM.
The driver version that i cloned from Iwfinger's repo is: v4.1.4_6773.20130222
Note that i used Iwfinger's hostapd version 0.8 that is included in the repository.
It worked but i had sometimes delays with connecting to the AP.
I was getting several entries in syslog from hostapd
WPA: received EAPOL-Key 2/4 Pairwise with unexpected replay counter
And the phone toke multiple reconnection attemps to connect again.
Also only WPA-PSK was available with hostapd 0.8.
I switched to hostapd version 2.6 and a patch for rtl871xdrv driver support.
Thanks to pritambaral and his patch from here
https://github.com/pritambaral/hostapd-rtl871xdrv
In this how to i used the driver and hostapd from Iwfingers repo.
So only WPA-PSK is available and connecting is delayed some times but working stable so far.
How to:
Get the Ubuntu iso from here http://old-releases.ubuntu.com/releases/13.04/ubuntu-13.04-server-i386.iso
Install minimal headless system in VirtualBox.
In VirtualBox as root, delete content of "/etc/apt/sources.list" and add the following:
################################
deb http://old-releases.ubuntu.com/ubuntu/ raring main
deb-src http://old-releases.ubuntu.com/ubuntu/ raring main
deb http://old-releases.ubuntu.com/ubuntu/ raring-updates main
deb-src http://old-releases.ubuntu.com/ubuntu/ raring-updates main
deb http://old-releases.ubuntu.com/ubuntu/ raring universe
deb-src http://old-releases.ubuntu.com/ubuntu/ raring universe
deb http://old-releases.ubuntu.com/ubuntu/ raring-updates universe
deb-src http://old-releases.ubuntu.com/ubuntu/ raring-updates universe
deb http://old-releases.ubuntu.com/ubuntu raring-security main
deb-src http://old-releases.ubuntu.com/ubuntu raring-security main
deb http://old-releases.ubuntu.com/ubuntu raring-security universe
deb-src http://old-releases.ubuntu.com/ubuntu raring-security universe
################################
sudo su -
cd
apt-get update
apt-get install linux-generic build-essential git wireless-tools dnsmasq
git clone https://github.com/lwfinger/rtl8188eu
cd rtl8188eu && make clean && make all && make install
cd hostapd-0.8/hostapd
cp -a defconfig .config
make clean && make all && make install
On my host system (my laptop) i had to blacklist the Linux staging driver,
rmmod r8188eu
echo "blacklist r8188eu" > /etc/modprobe.d/50-blacklist-r8188eu.conf
Plugin your MW150US and attach it VirtualBox to the VM.
Check in VirtualBox how the Wlan interface is named.
Run
modprobe 8188eu
ip a
Or
modprobe 8188eu
iwconfig
My interface is "wlan0"
Edit "/etc/network/interfaces" and configure wlan0
################################
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
auto wlan0
iface wlan0 inet static
address 192.168.0.1
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
post-up /usr/local/bin/hostapd.sh &
pre-down /usr/bin/killall hostapd
################################
Create "/usr/local/etc/hostapd.conf" with the following content.
################################
interface=wlan0
ctrl_interface=/var/run/hostapd
ssid=rtwap
channel=10
wpa=1
wpa_passphrase=76543210
uuid=12345678-9abc-def0-1234-56789abcdef0
device_name=RTL8188EU
manufacturer=Realtek
model_name=RTW_SOFTAP
model_number=WLAN_CU
serial_number=12345
device_type=6-0050F204-1
os_version=01020300
config_methods=label display push_button keypad
driver=rtl871xdrv
beacon_int=100
hw_mode=g
ieee80211n=1
wme_enabled=1
ht_capab=[SHORT-GI-20][SHORT-GI-40]
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
max_num_sta=8
wpa_group_rekey=86400
################################
Create the script that does the magic when your VirtualBox VM starts.
touch /usr/local/bin/hostapd.sh && chmod +x /usr/local/bin/hostapd.sh
This is the content of "/usr/local/bin/hostapd.sh"
################################
#!/bin/bash
/sbin/modprobe lib80211
/sbin/modprobe cfg80211
/usr/local/bin/hostapd -B /usr/local/etc/hostapd.conf >/dev/null 2>&1
/usr/sbin/service dnsmasq restart >/dev/null 2>&1
echo 1 > /proc/sys/net/ipv4/ip_forward
/sbin/iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o eth0 -j MASQUERADE
################################
Configure "dnsmasq"
touch /etc/dnsmasq.d/wlan0.conf
Content of "/etc/dnsmasq.d/wlan0.conf"
################################
interface=wlan0
domain=wlan0.local
dhcp-range=192.168.0.50,192.168.0.150,12h
dhcp-option=option:router,192.168.0.1
dhcp-option=option:ntp-server,192.168.0.1
# funny to see in /var/log/syslog what my phone is doing :)
log-queries
log-dhcp
################################
Remove package "resolvconf" from system
apt-get autoremove resolvconf && apt-get purge resolvconf
add DNS server,
echo "nameserver 192.168.89.1" > /etc/resolv.conf
Note that i have LXC containers on my system doing proxy, socks, VPN, DNS ... so my DNS server is 192.168.89.1
I have bridged my laptop, LXC containers and VirtualBox using a 192.168.89.0/24 subnet.
If you just want to provide Internet access with VirtualBox and the Wifi stick then no bridging is needed.
When you create the VirtualBox VM the default network setting is NAT so your VM will have Internet accesss through your hosts system (laptop).
In this case just add Google DNS servers in VirtualBox AP VM.
echo "nameserver 8.8.8.8 8.8.4.4" > /etc/resolv.conf
Now reboot your VirtualBox VM and you should see a Wifi AP in your phone called "rtwap"
My AP VM RAM usage:
root@hotspot ~ # free -m
total used free shared buffers cached
Mem: 116 69 46 0 13 31
-/+ buffers/cache: 23 92
Swap: 475 0 475
You can also download my VirtualBox image so you just have to plugin your mw150us v2 wifi stick.
ftp://pubftp.dyndns.org/ftp/Mw150usV2.tgz
SSID: MW150US
Wifi password: 87654321
Login: root
Password: Mw150usV2
AP IP from Wifi network: 192.168.0.1
Have fun!
Deshalb koennen Pinguine nicht fliegen.
Was nicht fliegt kann nicht abstuerzen!
Thank you Iwfinger for your time and work!