Yes I understand the risk of hacking the bootloader but since its just 6 bytes, its worth the 1 time effort as it saves me from managing of mac addresses in the config files.

MAC address is a 6 bytes thing.
But the bootloader itself is 128KB.

Since you can set it whatever you want (in hex), it is pointless to touch the bootloader for that just 6bytes of data.
Or, you are kind of person that in order to change the router IP, you will modd the firmware rather than do the config settings.....
that's up to you.

Hi, guys.

I hope you guys can help. I have the following set-up.

The question is: is it possible to configure the TL-WR703N, so that I could connect my TL-TR703N and my WRT310N with an ethernet cable, in order to access internet at my devices (Macbook, xbox, AppleTV)? I do not want to use the TL-TR703N's wireless, but my Linksys router's wireless instead.

Thanks in advance!

Of course you can connect the two routers together with an ethernet cable.  I don't think you even need to do anything special.  This is just one normal operation mode.  I do that all the time because I don't have 3G broadband.  Now to connect other computer device to 703n, you can only use wifi because there is only one ethernet port on 703n.  I don't know if you can connect the 3G dongle at the same time, though.

@johan666
Can you explain how to override the default MAC address?  I tried to change the macaddr in the /etc/config/network file.  However, after change that, my notebook cannot connect to the wifi anymore.  It can see 703n, however, when tried to connect to it, it could not.  After I change it back to the value in the uboot, it works again.  The ethernet port still worked fine after the change.

I hope that rx-pin from tty could be used as one.
I have not received my pice of hardware yet - but it shoud be rather easy to indetify GPIO number for rx-pin.
Just controll it through gpioctl and probe level change with voltage meter.

Can rx-pin used as GPIO?
(as tx is probably hard wired to kernel)

Just something like that.

config 'interface' 'lan'
....
        option 'macaddr' '12:23:34:45:56:af'

Tested, and works.

c:\>arp -a 192.168.1.1

Interface: 192.168.1.2 --- 0x2
  Internet Address      Physical Address      Type
  192.168.1.1          12-23-34-45-56-af     dynamic

c:\>arp -a 192.168.28.1

Interface: 192.168.1.2 --- 0x2
  Internet Address      Physical Address      Type
  192.168.1.1          5c-63-.................     dynamic         <---------- default HWaddr

And, of course you can change MAC address, remember there is a function "MAC address clone".
Why struggle in touching the bootloader !?

About your wifi problem.
Try MAC start with 00:......
then create a open non-protected SSID to test.
Some wifi client refuse to connect some weird mac address.
So, if you alter bootloader's mac address, you will also facing the same problem.....
then you will keep flashing your bootloader to testing.......
I don't see any need in touching the uboot.

(Last edited by johan666 on 15 Feb 2012, 05:39)

You can config the LED just flash when TX /and/or/ RX is occur.
Is it what you need ?

@johan666:
In any case, I cannot connect the wifi even though I only changed the ethernet mac address.  I changed to a known working mac address but still no go.  In any case, I just want to try anyway.  Not sure what is the reason.

Hi,
I want to setup PPPoE too,
but in Luci, we can't set two interface use the same physical interface.
Or it is a mistake in Luci, so that just edit /etc/config/network manually ?

or we should use vlan in this case ? do you know how to setup vlan in 703n ?

Looks like there is a command in uboot called "progmac" is for set ethernet mac addresses.  I don't know how to use it, though.

Be reminded that the mac address is not store inside the bootloader.

Then, where it is?

No - (at least my) plan is to use one of those "wires" as an GPIO pin.
As it seems that on pcb there are no indentifyed/free GPIO pins available...
I don't want to use led's IO - if there is an other way.

No johan666 I don't know how to setup vlan but if you want the script for PPPoE then I can help

Regards

Hi !
With the original firmware, just as normal (of coz), choose PPPoE then give IP to LAN, that's it.
In ddwrt it is also quite simple.
However with openwrt, if change (eth0) connection to pppoe, then where is the LAN ?
If open a new interface, then how to link the pppoe to the wifi.....
I'm new to this opensource system, so quite confuse.

And, the original firmware and openwrt (for wr703n) also has 802.1Q build-in, just wondering how to  using.

Hi All. A newbie here. I have managed to flash my 1.5 version 703n with openwrt and installed luci. For the life of me I cannot get a huawei E220 modem to work with it. Using dmesg I cannot even see it.

Assuming that I get it to be recognised one day, what is the best network config to be used if I want to use 703n as a simple 3G wifi router? Many thanks.

Do "opkg list-installed" and post the print-out here.

hi Lennong
Here is that list

base-files - 103-r30556
base-files-network - 3
busybox - 1.19.3-9
chat - 2.4.5-4
comgt - 0.32-9
crda - 1.1.1-1
dnsmasq - 2.59-2
dropbear - 2011.54-1
firewall - 2-45
hotplug2 - 1.0-beta-4
huaweiaktbbo - 1
iptables - 1.4.10-4
iptables-mod-conntrack - 1.4.10-4
iptables-mod-nat - 1.4.10-4
iw - 3.3-1
kernel - 3.2.5-1-a0d0c315644c4478a8aa3ed2b872f3de
kmod-ath - 3.2.5+2012-02-06-2
kmod-ath9k - 3.2.5+2012-02-06-2
kmod-ath9k-common - 3.2.5+2012-02-06-2
kmod-button-hotplug - 3.2.5-3
kmod-cfg80211 - 3.2.5+2012-02-06-2
kmod-crypto-aes - 3.2.5-1
kmod-crypto-arc4 - 3.2.5-1
kmod-crypto-core - 3.2.5-1
kmod-input-core - 3.2.5-1
kmod-input-gpio-keys-polled - 3.2.5-1
kmod-input-polldev - 3.2.5-1
kmod-ipt-conntrack - 3.2.5-1
kmod-ipt-core - 3.2.5-1
kmod-ipt-nat - 3.2.5-1
kmod-ipt-nathelper - 3.2.5-1
kmod-leds-gpio - 3.2.5-1
kmod-ledtrig-usbdev - 3.2.5-1
kmod-lib-crc-ccitt - 3.2.5-1
kmod-mac80211 - 3.2.5+2012-02-06-2
kmod-nls-base - 3.2.5-1
kmod-ppp - 3.2.5-1
kmod-pppoe - 3.2.5-1
kmod-usb-core - 3.2.5-1
kmod-usb-ohci - 3.2.5-1
kmod-usb-serial - 3.2.5-1
kmod-usb2 - 3.2.5-1
libc - 0.9.33-103
libgcc - 4.6-linaro-103
libip4tc - 1.4.10-4
libiwinfo - 24
libiwinfo-lua - 24
liblua - 5.1.4-8
libnl-tiny - 0.1-2
libpthread - 0.9.33-103
librt - 0.9.33-103
libuci - 2011-11-14.1-1
libuci-lua - 2011-11-14.1-1
libusb - 0.1.12-2
libusb-1.0 - 1.0.8-1
libxtables - 1.4.10-4
lua - 5.1.4-8
luci - trunk+svn8256-1
luci-app-firewall - trunk+svn8256-1
luci-i18n-english - trunk+svn8256-1
luci-lib-core - trunk+svn8256-1
luci-lib-ipkg - trunk+svn8256-1
luci-lib-lmo - trunk+svn8256-1
luci-lib-nixio - trunk+svn8256-1
luci-lib-sys - trunk+svn8256-1
luci-lib-web - trunk+svn8256-1
luci-mod-admin-core - trunk+svn8256-1
luci-mod-admin-full - trunk+svn8256-1
luci-proto-3g - trunk+svn8256-1
luci-proto-core - trunk+svn8256-1
luci-proto-ppp - trunk+svn8256-1
luci-sgi-cgi - trunk+svn8256-1
luci-theme-base - trunk+svn8256-1
luci-theme-openwrt - trunk+svn8256-1
mtd - 17
opkg - 618-2
ppp - 2.4.5-4
ppp-mod-pppoe - 2.4.5-4
swconfig - 10
uboot-envtools - 2011.06-4
uci - 2011-11-14.1-1
uhttpd - 30
usbutils - 004-1
wireless-tools - 29-4
wpad-mini - 20111103-3
zlib - 1.2.5-1

I was following this guide:
http://josefsson.org/openwrt/dongle.html

so I installed usb-serial, huaweiaktbbo and libusb.

When I input "lsusb" it does pick up that I have the modem in the USB slot:

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E230/E270 HSDPA/HSUPA Modem

It might be that the network configuration is all wrong:

config 'interface' 'loopback'
    option 'ifname' 'lo'
    option 'proto' 'static'
    option 'ipaddr' '127.0.0.1'
    option 'netmask' '255.0.0.0'

config 'interface' 'lan'
    option '_orig_ifname' 'eth0 radio0.network1'
    option '_orig_bridge' 'true'
    option 'ifname' 'eth0'
    option 'type' 'bridge'
    option 'proto' 'dhcp'

config 'interface' 'WAN'
    option 'proto' '3g'
    option 'device' '/dev/usb/tts/0'
    option 'service' 'umts'
    option 'apn' 'internet'

I have not tried to set it up to use the 3G as a WAN so I can access the internet over its wifi. Im a little lost, sorry.

(Last edited by johnjm on 19 Feb 2012, 11:23)

Do: opkg install kmod-usb-serial-option kmod-usb-serial-wwan usb-modeswitch usb-modeswitch-data

Reboot and then reset the 3G settings, normally Huawei modems gives like /dev/ttyUSB0 - USB3. Try with /dev/ttyUSB0 first.

(Last edited by Lennong on 19 Feb 2012, 11:25)

Many thanks, I will give it a shot. Tell me, is the network configuration sufficient assuming the modem works? It is currently set up on DHCP on the lan and wifi in bridge as I have it connected via lan to my adsl router in order to access internet.

Do I have to make a change there?

I have the same config, I sit on a sub-net under a ADSL router and have a DHCP adress assigned from that to my ethernet WAN port. I also have 1-2 3G modems as backup in a multiWAN config. Its failry straightforward, plenty wikis around. Dont forget to assign firewall rules and forward zones between them.

I think im getting closer, but my logfile says this

Feb 19 17:47:06 OpenWrt user.notice usb-modeswitch: 1-1:1.0: Manufacturer=HUAWEI_Technologies Product=HUAWEI_Mobile Serial=?
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: 1-1:1.0: Selecting /etc/usb_modeswitch.d/12d1:1003 for mode switching
Feb 19 17:47:07 OpenWrt user.info sysinit: 'radio0' is disabled
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: 1-1:1.1: Manufacturer=HUAWEI_Technologies Product=HUAWEI_Mobile Serial=?
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: 1-1:1.1: Selecting /etc/usb_modeswitch.d/12d1:1003 for mode switching
Feb 19 17:47:07 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: 1-1:1.2: Manufacturer=HUAWEI_Technologies Product=HUAWEI_Mobile Serial=?
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: 1-1:1.2: Selecting /etc/usb_modeswitch.d/12d1:1003 for mode switching
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:08 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:09 OpenWrt user.info sysinit: Loading defaults
Feb 19 17:47:09 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:09 OpenWrt user.notice usb-modeswitch: switching seemingly failed
Feb 19 17:47:09 OpenWrt user.notice usb-modeswitch: switching seemingly failed

any suggestions?

If I use ifup WAN it says this:

SIM ready
PIN set successfully

I have this in my kernel log:
[   14.190000] usbserial: USB Serial Driver core
[   14.300000] USB Serial support registered for GSM modem (1-port)
[   14.300000] option 1-1:1.0: GSM modem (1-port) converter detected
[   14.310000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0
[   14.310000] option 1-1:1.1: GSM modem (1-port) converter detected
[   14.320000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
[   14.330000] usbcore: registered new interface driver option
[   14.330000] option: v0.7.2:USB Driver for GSM modems

I dont really have a ttyUSB2 or 3... only 0 and 1...

any other help appreciated...

edit:

I now have this:
b 19 17:52:13 OpenWrt local2.info chat[2255]: AT&F^M^M
Feb 19 17:52:13 OpenWrt local2.info chat[2255]: OK
Feb 19 17:52:13 OpenWrt local2.info chat[2255]:  -- got it
Feb 19 17:52:13 OpenWrt local2.info chat[2255]: send (ATE1^M)
Feb 19 17:52:13 OpenWrt local2.info chat[2255]: expect (OK)
Feb 19 17:52:13 OpenWrt local2.info chat[2255]: ^M
Feb 19 17:52:13 OpenWrt local2.info chat[2255]: ATE1^M^M
Feb 19 17:52:13 OpenWrt local2.info chat[2255]: OK
Feb 19 17:52:13 OpenWrt local2.info chat[2255]:  -- got it
Feb 19 17:52:13 OpenWrt local2.info chat[2255]: send (AT+CGDCONT=1,"IP","internet"^M)
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: timeout set to 30 seconds
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: expect (OK)
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: ^M
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: AT+CGDCONT=1,"IP","internet"^M^M
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: OK
Feb 19 17:52:14 OpenWrt local2.info chat[2255]:  -- got it
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: send (ATD*99***1#^M)
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: expect (CONNECT)
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: ^M
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: ATD*99***1#^M^M
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: NO CARRIER
Feb 19 17:52:14 OpenWrt local2.info chat[2255]:  -- failed
Feb 19 17:52:14 OpenWrt local2.info chat[2255]: Failed (NO CARRIER)

Its failing due to a carrier issue it seems.... hmmmm

(Last edited by johnjm on 19 Feb 2012, 18:23)

Wait, success at last!

Thanks very much!

The mac addr is stored in same mtd0 where bootloader is also in, at offset 0x1fc00-0x1fc05 (6 bytes)

And I finally managed to change the mac addr after making my own build, thanks to mod info at .  Now my WR703N can change its identity freely

(Last edited by timo on 20 Feb 2012, 07:13)