SmallNetBuilder Forums
Go Back   SmallNetBuilder Forums > Wireless Networking > ASUS Wireless > ASUS N Routers & Adapters

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 01-20-2013, 04:06 AM
OGroteKoning's Avatar
OGroteKoning OGroteKoning is offline
Member
 
Join Date: Aug 2012
Posts: 33
Thanks: 20
Thanked 4 Times in 2 Posts
OGroteKoning is just starting out
Default USB modem sniffer tool

My previous router was not compatible with all the modems I had. So customer support of said router linked me to a sniffer tool so I can run some sniffing-tests in order to create a bin file which I could load onto the router and get the modem working on it. It was not always successful, but at least I got some modems to work.

There is little support from Asus to add specifically LTE USB modems to their compatibility list. I don't mind trying to create a bin file (or similar) to get my modems to work. From this I have 2 questions:

1. Is there such a tool that one can use to creat a file that can be loaded onto the RT-N66U to make a modem compatible with the router
2. If such a tool for the RT-N66U exists, and provided I am successful, how would I load the file onto the router?
Reply With Quote
  #2  
Old 01-20-2013, 04:31 AM
plun plun is offline
Member
 
Join Date: Jan 2013
Posts: 61
Thanks: 12
Thanked 2 Times in 2 Posts
plun is just starting out
Default

I am also interested in a sniffer tool.

For the moment I am using a Dovado Tiny in bridged mode in serial with my RT-N66U. Huawei E392 or E398 as LTE/4G modem.

Tplink uses a sniffer tool
https://www.google.se/search?q=tplin...irefox-nightly

But Tplink cannot go above 22.5 Mbits and I have a 80 Mbits connection
(usual 50-60 Mbits)

EDIT Tested my Huawei E398 and it works but with the 22,5 Mbits limitation. EDIT again, also my Huawei E392 works but with the same 4G limitation.



Back to Dovado Tiny as bridge.

Last edited by plun; 01-20-2013 at 07:42 AM.
Reply With Quote
  #3  
Old 01-20-2013, 11:05 AM
OGroteKoning's Avatar
OGroteKoning OGroteKoning is offline
Member
 
Join Date: Aug 2012
Posts: 33
Thanks: 20
Thanked 4 Times in 2 Posts
OGroteKoning is just starting out
Default

That Dovado Tiny is an expensive lil sucker!
Reply With Quote
  #4  
Old 01-20-2013, 03:14 PM
plun plun is offline
Member
 
Join Date: Jan 2013
Posts: 61
Thanks: 12
Thanked 2 Times in 2 Posts
plun is just starting out
Default

Quote:
Originally Posted by OGroteKoning View Post
That Dovado Tiny is an expensive lil sucker!
Well, in Sweden around $90. It then lacks too many router functions so therefore I bought The dark knight...

Frustrating that 4G/LTE is so difficult for manufacturer... is it just lack of 4G scripts or are also drivers needed ?? (maybe also "proprietary drivers" ?)
Reply With Quote
  #5  
Old 01-20-2013, 03:33 PM
plun plun is offline
Member
 
Join Date: Jan 2013
Posts: 61
Thanks: 12
Thanked 2 Times in 2 Posts
plun is just starting out
Default

Followup after some research.

The challenge is probably NDIS and proprietary stuff.

From Draisberghof

http://www.draisberghof.de/usb_modes...te+4g&start=15

Quote:
Huawei has a linux library (libNDIS.so) and a header file to implement 3rd party connect utilities. This library I was able to obtain but it is confidential.

From all that I am aware of the NDIS variant is to be used for speed >17/18MBit. The usbserial/option approach does have its limit there (at least from my experiences with testplants that use HSPA (dual channel) and LTE yet. I do not know about the ipv6 stuff yet.

I have implemented a small utility to connect with NDIS and it works well. It seems that the library mentioned does use Qualcomm QMI protocol to communicate with the device. I am able to set user/pass/apn and PAP/CHAP/NONE. Connection works and the new ethernet device eth2 (I named it ndis in my persistent network rules) uses dhcp to get an IP address. After setting proper routing (or default route over eth2) the connection is established and working.

My goal is to develop my own connection utility not using the libNDIS.so from huwaei. Therefore I must sniff and understand the QMI traffic, can anybody help? (Josh?)

Thanks

So a sniffer cannot do anything, at least with Huawei 4G modems...
Reply With Quote
  #6  
Old 01-23-2013, 11:07 PM
sfx2000 sfx2000 is offline
Very Senior Member
 
Join Date: Aug 2011
Location: San Diego, CA
Posts: 1,235
Thanks: 16
Thanked 134 Times in 120 Posts
sfx2000 is just starting out
Default

QXDM - it'll log the 3G/4G packets... and a lot more...

The Dovado Tiny and the Huawei E398 are Qualcomm reference designs - you can do some sniffing at the USB/Ethernet layer depending on drivers/host OS.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 01:58 AM.


Top 10 Stats
Top Posters* Top Thanked
RMerlin  413
john9527  163
azazel1024  116
htismaqe  104
sfx2000  88
ColinTaylor  73
stevech  72
AndreyPopov  62
TonyH  53
bbb0777  41
RMerlin  6061
john9527  394
stevech  351
ryzhov_al  280
TeHashX  237
L&LD  232
RogerSC  201
sinshiva  147
sfx2000  134
joegreat  126
Most Viewed Threads* Hottest Threads*
Old Asuswrt-Merli...  31904
Old RT-AC68P...  3147
Old Brainstorming...  2768
Old Advice on...  2660
Old Looking for...  2401
Old Asus...  1856
Old Issues...  1831
Old Stable...  1761
Old AC-68...  1662
Old 3 months...  1507
Old Asuswrt-Merli...  228
Old Brainstorming...  49
Old Advice on...  49
Old Looking for...  35
Old RT-AC68P...  33
Old WiFi...  27
Old Issues...  25
Old Stable...  25
Old WiFi Rates  23
Old Firewall...  22


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
© 2006-2014 Pudai LLC All Rights Reserved.