Introduction
This blog post explains how to install OpenWrt on the Kingston Mobilelite Wireless MLWG2.
Download OpenWrt image for MLWG2
Download Chaos Chalmer 15.05 for mlwg2 from https://downloads.openwrt.org/chaos_calmer/15.05/ramips/mt7620/
gmacario@ITM-GMACARIO-W7 ~/Downloads
$ ls -la openwrt-15.05-ramips-mt7620-mlwg2-squashfs-sysupgrade.bin
-rwxrwx---+ 1 Administrators Domain Users 3407876 Nov 29 08:38 openwrt-15.05-ramips-mt7620-mlwg2-squashfs-sysupgrade.bin
gmacario@ITM-GMACARIO-W7 ~/Downloads
$ md5sum openwrt-15.05-ramips-mt7620-mlwg2-squashfs-sysupgrade.bin
6948bca859a59797fc5f5978f004e11a *openwrt-15.05-ramips-mt7620-mlwg2-squashfs-sysupgrade.bin
gmacario@ITM-GMACARIO-W7 ~/Downloads
$Prepare the install media
Plug a FAT32-formatted USB pendrive on the host and put the following files:
$ cd /media/xxx/
$ touch 'mlwG2_v;telnetd; .x.x.bin'
$ cp ~/Downloads/openwrt-15.05-ramips-mt7620-mlwg2-squashfs-sysupgrade.bin .
$ ls -la
$ cd
$ umount /media/xxx(Optional, recommended) Connect a USB-to-serial-TTL dongle to the serial console
| MLWG2 pad | Signal | Notes | Connect to |
|---|---|---|---|
| 1 | +3.3Vdc | Marked with a white dot | DO NOT CONNECT |
| 2 | TX | Close to R139 | USB-to-TTL dongle pin “R” |
| 3 | RX | Close to R54 | USB-to-TTL dongle pin “T” |
| 4 | GND | - | USB-to-TTL dongle pin “G” |
Launch a terminal emulator (COMx:57600,8,n,1)
Plug the USB Pendrive into the USB connector of the MLWG2.
Connect to Wi-Fi network “MLWG2-xxxx” (replace xxxx with the last two bytes of the MAC address)
Then telnet to 192.168.201.254 (username:admin; password:none)
C:\Users\gmacario>telnet 192.168.201.254
(none) login: admin
BusyBox v1.12.1 (2014-09-18 09:46:08 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
#Logged as admin@mlwg2
# mtd_write write /media/USB1/openwrt-ramips-mt7620n-mlwg2-squashfs-sysupgrade.bin KernelA
# mtd_write -r write /media/USB1/openwrt-ramips-mt7620n-mlwg2-squashfs-sysupgrade.bin KernelBThe MLWG2 will reboot after the second command is complete.
Result:
# ls -la /media
drwxrwxrwx 2 0 0 4096 USB1
drwxr-xr-x 18 0 0 0 ..
drwxr-xr-x 3 0 0 0 .
# ls -la /media/USB1
-rwxrwxrwx 1 0 0 3407876 openwrt-15.05-ramips-mt7620-mlwg2-squ
ashfs-sysupgrade.bin
-rwxrwxrwx 1 0 0 0 mlwG2_v;telnetd; .x.x.bin
drwxr-xr-x 3 0 0 0 ..
drwxrwxrwx 2 0 0 4096 .
# mtd_write write /media/USB1/openwrt-15.05-ramips-mt7620-mlwg2-squashfs-sysupgr
ade.bin KernelA
Unlocking KernelA ...
Writing from /media/USB1/openwrt-15.05-ramips-mt7620-mlwg2-squashfs-sysupgrade.b
in to KernelA ... [w]
# mtd_write -r write /media/USB1/openwrt-15.05-ramips-mt7620-mlwg2-squashfs-sysu
pgrade.bin KernelB
Unlocking KernelB ...
Writing from /media/USB1/openwrt-15.05-ramips-mt7620-mlwg2-squashfs-sysupgrade.b
in to KernelB ... [e]
Connection to host lost.
C:\Users\gmacario>Result on the serial console:
BusyBox v1.23.2 (2015-07-25 03:03:02 CEST) built-in shell (ash)
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
CHAOS CALMER (15.05, r46767)
-----------------------------------------------------
* 1 1/2 oz Gin Shake with a glassful
* 1/4 oz Triple Sec of broken ice and pour
* 3/4 oz Lime Juice unstrained into a goblet.
* 1 1/2 oz Orange Juice
* 1 tsp. Grenadine Syrup
-----------------------------------------------------
root@OpenWrt:/# [ 76.140000] random: nonblocking pool is initialized
root@OpenWrt:/#Inspect OpenWrt configured interfaces
root@OpenWrt:/# ifconfig -a
br-lan Link encap:Ethernet HWaddr 00:26:B7:08:E0:A2
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fda0:2235:dc76::1/60 Scope:Global
inet6 addr: fe80::226:b7ff:fe08:e0a2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:333 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:31038 (30.3 KiB)
eth0 Link encap:Ethernet HWaddr 00:26:B7:08:E0:A2
inet6 addr: fe80::226:b7ff:fe08:e0a2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:138 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:14401 (14.0 KiB)
Interrupt:5
eth0.1 Link encap:Ethernet HWaddr 00:26:B7:08:E0:A2
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:130 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:11500 (11.2 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:9168 errors:0 dropped:0 overruns:0 frame:0
TX packets:9168 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:623424 (608.8 KiB) TX bytes:623424 (608.8 KiB)
wlan0 Link encap:Ethernet HWaddr 00:26:B7:08:E0:A2
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
root@OpenWrt:/#OpenWrt - First Login
See https://wiki.openwrt.org/doc/howto/firstlogin
Configure your host to connect to 192.168.1.1 using the local network
TODO
Reconfigure networking
From the serial console use the uci command to take a static IP address in your local network and use Google DNS (replace x and y appropriately)
# uci set network.lan.netmask=255.255.255.0
# uci set network.lan.ipaddr=192.168.x.y
# uci set network.lan.gateway=192.168.x.z
# uci set network.lan.broadcast=192.168.x.255
# uci set network.lan.dns="8.8.4.4 8.8.8.8"
# uci commit networkAs an alternative, directly edit file /etc/config/network
# vi /etc/config/networkThen restart networking
# /etc/init.d/network restartVerify that the network configuration has changed accordingly (in this example we had network.lan.ipaddr=192.168.64.65)
root@OpenWrt:/etc/config# ifconfig
br-lan Link encap:Ethernet HWaddr 00:26:B7:08:E0:A2
inet addr:192.168.64.65 Bcast:192.168.64.255 Mask:255.255.255.0
inet6 addr: fda0:2235:dc76::1/60 Scope:Global
inet6 addr: fe80::226:b7ff:fe08:e0a2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:37 errors:0 dropped:0 overruns:0 frame:0
TX packets:26 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2615 (2.5 KiB) TX bytes:2655 (2.5 KiB)
eth0 Link encap:Ethernet HWaddr 00:26:B7:08:E0:A2
inet6 addr: fe80::226:b7ff:fe08:e0a2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1958 errors:0 dropped:0 overruns:0 frame:0
TX packets:200 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:310839 (303.5 KiB) TX bytes:21653 (21.1 KiB)
Interrupt:5
eth0.1 Link encap:Ethernet HWaddr 00:26:B7:08:E0:A2
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:69 errors:0 dropped:0 overruns:0 frame:0
TX packets:35 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4919 (4.8 KiB) TX bytes:3389 (3.3 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:2064 errors:0 dropped:0 overruns:0 frame:0
TX packets:2064 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:140352 (137.0 KiB) TX bytes:140352 (137.0 KiB)
root@OpenWrt:/etc/config#Perform some tests:
From the MLWG2, try pinging another host in the same subnet - for instance, the default gateway
# ping <default_gateway_ip>Now try pinging a well known server - for instance, Google DNS
# ping 8.8.8.8From a Linux machine on the same subnet do a port scan of the MLWG2
$ sudo nmap <device_ip>Stay tuned for future posts on some interesting uses of OpenWrt on my MLWG2!