Database Develop

GPRS & WiFi: Let me select which one to use (on Helmi 1.4)

I’m like many others, a happy user of Helmi’s ROM and read this forum everyday to see what clever things people have come up with.
Recently, my cell phone provider came out of the dark ages and is providing GPRS. It’s even free at the moment! (Even though it’s very slow).
This is all nice for on the road and in town, but when I am at home or in the office, it want to connect via WiFi and being able to access web pages a LOT faster then via GPRS. I can connect to WiFi while I am connected to GPRS, but when I try to open a page with PIE, it uses the GPRS connection, not my WiFi (the difference is easy to tell since it’s so slow).
On one of the previous ROMs there was a little utility to track the GPRS settings and it had a disconnect option. However, this program is no longer included in the Helmi’s 1.4 and I have not found any other option to turn off GPRS then by using the “Flight mode” program to disconnect from the cell phone network and back on again. But that is of course a slow and strange solution.
What I would like is this: When WiFi is available, it will go via WiFi, when WiFi is off, it should use GPRS to get a web page. Is there is a way to prioritize the internet connections?
Vijay555 has a command-line utility to disconnect GPRS with and I’m going to give that a try, but maybe someone has a different solution where the 2 connection can exist at the same time….
Thanks in advance.

Are u referring to http://www.gb-soft.cz/XDAII/ this little app?

GerardNL said:
Is there is a way to prioritize the internet connections?
Click to expand...
Click to collapse
Yes, it's built into the TCP/IP protocol. You are looking for something called "interface metric" which is a number. IIRC, the lower the metric, the lower the "cost" i.e. the better the link is. This can be set manually on PCs. No idea how to do it on the phone, probably a registry tweak. The following makes sense:
1 Wifi
10 ActiveSync
100 GPRS
The numbers are whatever you want them to be.

kerio said:
Are u referring to http://www.gb-soft.cz/XDAII/ this little app?
Click to expand...
Click to collapse
Yes, that's the one. Thx!. It's a very tiny program, but it has the option to add the "disconnect" button to the pop-up bubble. Maybe that is just a registry setting... I will have to look into that one. If so, then that registry option is going to be a standard for me...
fraser said:
Yes, it's built into the TCP/IP protocol. You are looking for something called "interface metric" which is a number. IIRC, the lower the metric, the lower the "cost" i.e. the better the link is. This can be set manually on PCs. No idea how to do it on the phone, probably a registry tweak. The following makes sense:
1 Wifi
10 ActiveSync
100 GPRS
The numbers are whatever you want them to be.
Click to expand...
Click to collapse
I totally agree and it does make a lot of sense. I've been snooping around in the registry, but did not find anything that I expect that has to do with the "cost" of a connection. So, that might mean that extra keys need to be added if it would be possible at all and that's a bit out of league.
However, I can't imagine that other people not facing the same problem, so maybe the solution is in a totally different direction??

GerardNL said:
I totally agree and it does make a lot of sense. I've been snooping around in the registry, but did not find anything that I expect that has to do with the "cost" of a connection. So, that might mean that extra keys need to be added if it would be possible at all and that's a bit out of league.
Click to expand...
Click to collapse
I've looked around myself with no success. It must be there because it's a part of the TCP spec. Very odd.
Is there any way to get a "netstat -r" out of the phone? vxUtil and vxIpConfig don't seem to do it, but the output would confirm that the device knew about iface metrics.
However, I can't imagine that other people not facing the same problem, so maybe the solution is in a totally different direction??
Click to expand...
Click to collapse
I've just learned to live with the fact that you cannot control this. Not that it matters for me, GSM and GPRS doesn't work for me on the 3.5 roms anyway; some sort of carrier issue.

Maybe the link below can help you
http://msdn2.microsoft.com/en-us/library/aa915714.aspx
I've found it see the attached file.
Original source : http://www.ce4you.cz/forums/view_topic.asp?t=13033&dd=0&fi=10 thx goes to jimm98y

PocketCMD not working
I've tried to install the PocketCMD program, but whenever I start it, I get the below error:
"CMD Cannot start. There are too many console windows open. Please close some console applications and try again"
This even happens when I just restarted my BA. Does PocketCMD work for you?

Its working like a charm, I've Helmi 1.4 vanilla one. Maybe its cause of some installed program?
I recieved the same message as you - but one soft reset and then disappeared.
Also I've NETf v.2 installed - not sure if its required or not?
http://www.symbolictools.de

Found out more about the network metric
Today, I noticed that there is also a Pocket CMD icon on of the Settings tabs. Once I started that and flipped through the pages, Pocket CMD starts!
The strange thing is that after another reset, I get the same error message again and the above trick doesn't work.
While it was working, I got these results:
With "netstat -r" (or "route print") I've figured out that my GPRS interface has a metric of 50.
And when connected to ActiveSync the metric is 30 (but the GPRS gets disconnected)
The WiFi interface has a metric of ?? (Haven't gotten that one yet), but obviously >50 or we would not be having this discussion....
I've done some searching on the internet (with the keywords: Pocket PC network metric interface) and you find a lot of conversion tools for metric to imperial, but did find something interesting on this page:
From: http://www.lockergnome.com/nexus/it/category/troubleshooting/page/3/ (by Marc Erickson)
-------------------------------
Below is the syntax to add a new route:
ROUTE ADD MASK METRIC IF
Here’s an example:
ROUTE ADD 192.168.1.0 MASK 255.255.255.0 192.168.0.9 METRIC 2 IF 2
In this example, 192.168.0.9 is the gateway for all traffic to the destination 192.168.1.0/24. The metric is 2, and the interface number is 2.
When you add a route using this syntax, the route doesn’t persist across restarts of the computer. To make a route persist, add the -p switch to the command, as shown below:
ROUTE -p ADD 192.168.1.0 MASK 255.255.255.0 192.168.0.9 METRIC 2 IF 2
To delete a route, use the DELETE keyword and the destination address. Here’s an example:
ROUTE DELETE 192.168.1.0
----------------------
So, it is (should) be possible to manually add and remove routes and set the metrics of multiple connections. Especially with the "-p" option this looks very interesting. Since all that we need is that the metric of WiFi is lower then the one of GPRS and we're in business.

Have you ever worked with ROUTE command (see the windows help)? It shouldn't be difficult to set the proper metric - just make your GPRS connection and analyse routing table. Then make persistent changes.
Or post here your entries of routing table.

never mind, I answered my own question .

Metrics are not the problem
Today, I finally had a chance to work on this and all the electronics were willing to cooperate, so I finally have a result. This is the output from the "route print" statement while having GPRS and WiFi enabled:
Code:
=============================================================================
Interface List
196610 0 0 0 0 0 0
196611 0 9 2d 10 ab 0 tiacxwln1
=============================================================================
=============================================================================
Active Routes
The no. of entries is ::: 13
Destination Netmask GatewayAddress Interface Metric
----------------------------------------------------------------------------
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.3 30
0.0.0.0 0.0.0.0 10.41.247.141 10.41.247.141 50
10.0.0.0 255.0.0.0 10.41.247.141 10.41.247.141 50
10.41.247.141 255.255.255.255 127.0.0.1 127.0.0.1 50
10.255.255.255 255.255.255.255 10.41.247.141 10.41.247.141 50
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.1.0 255.255.255.0 192.168.1.3 192.168.1.3 30
192.168.1.3 255.255.255.255 127.0.0.1 127.0.0.1 30
192.168.1.255 255.255.255.255 192.168.1.3 192.168.1.3 30
224.0.0.0 240.0.0.0 192.168.1.3 192.168.1.3 30
224.0.0.0 240.0.0.0 10.41.247.141 10.41.247.141 50
255.255.255.255 255.255.255.255 10.41.247.141 10.41.247.141 1
255.255.255.255 255.255.255.255 192.168.1.3 192.168.1.3 1
=============================================================================
For the WiFi, I'm using the 192.x.x.x range and the 10.x.x.x is used by the phone company. As you can see, the metrics are correct: WiFi has a metrics of 30 and GPRS of 50, so when you open a page and both connections are active it should route via the WiFi as these 2 lines would suggest:
Code:
Destination Netmask GatewayAddress Interface Metric
----------------------------------------------------------------------------
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.3 30
0.0.0.0 0.0.0.0 10.41.247.141 10.41.247.141 50
So, why doesn't this work? As it seems to me, the metric is not the problem that the "cheapest" route is not choosen. I have been thinking what else could cause this, but have not found anything logical yet.

Interesting. I've been quiet on this as I can't get PocketCMD to work. Locks up my phone.
What I would test next is test that all routes are active. Connect to GPRS and use xvUtil tracert (or pocketcmd if it has it) to determine where packets for the following destinations:
1) www.google.com
2) 192.168.0.1 (you router)
3) 10.41.247.141 (GPRS router, may change per connection)
Now, if you can hit (2) OK, the WiFi routing is mostly OK. As per your original problem, (1) should route via GPRS. The default route is represented by 0.0.0.0 here; this means that any subnets (e.g. google's) that aren't specifically mentioned in the table go that way. If you delete the GRPS 0.0.0.0 route via "route delete", then you should guarantee that the internet packets go via your wifi. However, this isn't an ideal solution as you would need to run this all the time. On the other hand, you might be able to write two scripts to manage this. The first would activate the wifi and delete the GPRS route. The second would deactivate the wifi and re-enable the route. As the GPRS route probably changes, this could be difficult. Would probably be easier to write this in Visual Studio as a compiled app in order to do the parsing, perhaps storing the GPRS route details in the registry for retrieval when it's re-enabled. Quite a lot of work for what is essentially a brute force fix. There must be a better way...

Tethering on Linux? SOLVED

Has anyone got tethering working with the Kaiser/Tilt on Linux? I cannot seem to get it working with the builtin Wmodem program (ipaq module) or MobileStream's USB modem (cdc_adm module).
I am new to AT&T from Verizon, and may simply be having GPRS ppp chat-script issues. So anyone with experience in getting this working... I would appreciate any help you could offer.
Regards,
SC

the way I've been tethering is with bluetooth. I found this tutorial and followed it: http://klamstwo.org/evad/archives/40
I run Fedora 7 (Moonshine) and it works flawlessly.

Thanks for the info... I will give that a shot. Also, when I tethered my Treo on Verizon with bluetooth it was really slow. Since this is BT 2.0 and I have a BT 2.0 module for my laptop... how much difference do you think there will be between BT/USB tethering.
Thanks,
SC

When I tethered my MDA it was slow too, mainly because of lack of 3G. Connecting was slow as well.
I've yet to get USB to work, actually I havent tried but I've done it in XP Pro and there wasn't much of a difference IMO.

Got it working with wvdial
After many hours of tinkering, I got USB tethering with wvdial.
First, start the Wmodem program on the Tilt and select USB. Then click Menu-->Start
On the command line type: /sbin/modprobe ipaq vendor=0x0bb4 product=0x00cf
Now plug in your USB cable
If you type dmesg you should see that ttyUSB0 is now initialized
Create a /etc/wvdial.conf with the following:
[Dialer Defaults]
Modem = /dev/ttyUSB0
ISDN = off
Modem Type = Analog Modem
Baud = 460800
Init = ATZ
Init2 = ATZ+CGDCONT=1,"IP","ISP.CINGULAR"
Init3 =
Init4 =
Init5 =
Init6 =
Init7 =
Init8 =
Init9 =
Phone = *99#
Phone1 =
Phone2 =
Phone3 =
Phone4 =
Dial Prefix =
Dial Attempts = 1
Dial Command = ATDT
#Ask Password = on
Password = CINGULAR1
Username = [email protected]
Auto Reconnect = off
Abort on Busy = off
Carrier Check = on
Check Def Route = on
Abort on No Dialtone = on
Stupid Mode = on
Idle Seconds = 0
Auto DNS = on
Lastly create a file called /etc/ppp/peers/wvdial containing the 2 lines:
lcp-echo-failure 0
lcp-echo-interval 0
Now at a command prompt type wvdial
You should see it connect and get an IP address
You can put the modprobe statement in /etc/rc.local
Hope this helps... it works for me (I am posting this via the USB tether right now)
Also, can an admin change this thread name and add a SOLVED to it?
Regards,
SC

IP address release and renew?

great forum - hope this is the right place to ask this question
New to android and smart phones but doing it up with my new Nexus One on stock froyo ROM.
My work network has some issues including erroneous DHCP addresses being dished up in the wrong 192.168... range (old office infrastructure fix for the problem is someone else's gig).
I want to do a /release /renew on my Nexus One to pick up a legit ip address (on our windoze machines we just do the ipconfig /release /renew).
Is there an equivalent for this phone and Android? I have searched around and picked up a couple of network stat apps but they don't have the release/renew. Sure I can keep rebooting or killing WiFi and reconnecting but would like to know if there is a better way.
thanks!

Instead of trying to band-aid a problem, you should just fix the existing DHCP issue.
Seriously, DHCP is one of the simplest protocols to set up. Take 10 minutes, track down the range issue, correct it, and never worry about it again.

If I understand it correctly, you're looking for "netcfg eth0 dhcp" command, or possibly:
"netcfg eth0 down"
"netcfg eth0 up"
"netcfg eth0 dhcp"

Jack_R1 said:
If I understand it correctly, you're looking for "netcfg eth0 dhcp" command, or possibly:
"netcfg eth0 down"
"netcfg eth0 up"
"netcfg eth0 dhcp"
Click to expand...
Click to collapse
Jack, I tried those commands, and on the last one I got this:
action 'dhcp' failed (No such process)
Also, if I just run netcfg between down and up, it seems like eth0 is never disabling properly. I am in superuser mode.
Any hints?

try netcfg alone
Andresehn said:
Jack, I tried those commands, and on the last one I got this:
action 'dhcp' failed (No such process)
Also, if I just run netcfg between down and up, it seems like eth0 is never disabling properly. I am in superuser mode.
Any hints?
Click to expand...
Click to collapse
I just ran 'netcfg' alone and it turns out it's wlan0 instead of eth0.

To do a DHCP release and renew:
Fire up terminal emulator and type:
su
dhcpcd -k wlan0
dhcpcd -n wlan0
Turn wifi off/on and you'll get a new dhcp ip address rather than just a refresh on the existing one.

mickrick said:
To do a DHCP release and renew:
Fire up terminal emulator and type:
su
dhcpcd -k wlan0
dhcpcd -n wlan0
Turn wifi off/on and you'll get a new dhcp ip address rather than just a refresh on the existing one.
Click to expand...
Click to collapse
If it's a different interface, say eth1, you might need to run 'dhcpcd eth1' first. You can verify the DHCP configuration via 'getprop | grep dhcp'.

I'm trying to use a site on my LG stilo 3. The site keeps redirecting me an is saying Im using a proxy IP or VPN an I don't even know really what they are let alone how to use them. How do I set it so my IP doesn't hide when I try to use said site??? Please help!! Thank you

[Q] Help with reverse tethering

Hey there,
I would like to use reverse tethering over my usb cable.
Before I start I'll let you know my setup:
Windows 7 x64 machine, sdk (inc. adb) installed but adb seems to make problems
i9000 running infinitum 2.1 with devil2 v0.72
These are the steps I used:
-connect the phone
-activate usb-tethering on the phone
-PC: change the ip on the new network adapter to 192.168.2.1
-PC: set my local area connection to share my internet connection with the new network adapter
-PC: add http service to the shared internet services
-open terminal on the phone
-executing the following commands:
Code:
ifconfig rndis0 192.168.2.2 netmask 255.255.255.0 up
route add default gw 192.168.2.1 dev rndis0
iptables -F
iptables -F -t nat
setprop net.dns1 78.42.43.62
setprop "net.gprs.http-proxy" ""
Funny part is: I can't ping a domain like google.de also no app is able to access the internet... BUT I can ping 173.194.35.151 (google.de ip afaik?!).
So I DO have a connection... somehow (tested with WiFi off and mobile data off) but no app has access and it can't resolve any domain names?!
78.42.43.62 is the correct ip for my dns provider!
Here are two screenshots proving what I'm talking about: Screen1 Screen2
So what can I do? Can some1 help me out here?
EDIT: I just wanted to point out that normal tethering IS WORKING, I do have a stable connection to my phone (even when transfering data), drivers are working!

Read the following post.. maybe it'll help you
Reverse Tethering

[Fix] [No Root] wifi disconnecting ...

RMN7 3-32 Global 10.3.6.0
Developper Options:
USB Debugging => ON
And
USB Debugging (Security settings) => ON (you need Sim card)
You need a computer, a usb cable connected and adb installed on the computer (i let you find "how to" install and use adb)
Code:
adb devices
adb shell settings put global wifi_sleep_policy 1
If you want come back to the default value:
Code:
adb shell settings put global wifi_sleep_policy 2
if you want to check the "wifi_sleep_policy" current value:
Code:
adb shell settings list global
The trick is that the default setting "wifi_sleep_policy 2" should have been the one that does not create disconnections but this is not...
Keep WiFi on during sleep: Always = 2 #Fail
Keep WiFi on during sleep: Only When Plugged In = 1 #Good !
Keep WiFi on during sleep: Never = 0 #dunno, not tested
With "wifi_sleep_policy 1" I tryed plugged in and not plugged in=> no more disconnections.
Click to expand...
Click to collapse
Epic Fail !
Today I was disconnected from the wifi several times, I do not understand why it worked for more than 5 days. :crying: :crying:
So do not do what I wrote above it's useless.
I am on another track: my provider has imposed IPV6 sneakily recently...
I managed to get around their trick by forcing the IPV4 again.
I will come back here to say if it worked.

Success !
Forcing IPV4
12 days => 0 disconnection
As soon as I put back into service the IPV6 the disconnections came back a few hours later.

hey mate, you disabled ipv6 on router or on your phone? I'm having the same issue

Falknet said:
hey mate, you disabled ipv6 on router or on your phone? I'm having the same issue
Click to expand...
Click to collapse
I used a laptop on W10 as an access point by having previously disabled the management of IPV6 on network cards.
But now I will have to buy a router to avoid killing the laptop .