I have been having trouble connecting to my work VPN with the G-Tablet. I have since tried going to ZPad 3.0 in hopes this would fix the issue. However, no luck. The VPN server is reporting an event error of 20209.
After a few hours of looking on other forums it turns out this have been an issue since Android 2.1. They have either intentionally left out the encryption module from PPPD or it was forgotten in the build. The 'fix' is to copy the PPPD file from a version prior to 2.1 (Android 1.5?) and save it to the System/xbin directory. However there is an argument over if should go into system/bin for 2.2.
Does anyone have more information on this - or better yet a fix/update? Any help on this would be appreciated.
which ROm are you using
stock ROM doesn't have VPN at all.
justauser said:
stock ROM doesn't have VPN at all.
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Click to collapse
I'm using ZPAD 3.0 ROM at the moment.
I have narrowed it down to a problem with the MPPE 128 encryption. I have found a PPPD that is supposed to fix the problem (see link below), but I don't now how to get it to the system directory. How do you mount system as R/W?
Alternate PPPD:
H***://melko.hiljanen.com/~qvr/android/ppp/
Root explorer will allow you to mount it that way
Sent from my DROIDX using Tapatalk
Let me know how it goes... I have been trying to connect my gtab but I thought I was the only person interested!
Sent from my DROIDX using XDA App
vectorcharlie said:
Let me know how it goes... I have been trying to connect my gtab but I thought I was the only person interested!
Sent from my DROIDX using XDA App
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Click to collapse
Ditto!!!!!!!!
Tried your link, getting the same error I've seen in the past:
Code:
pppd: This system lacks kernel support for PPP. This could be because
the PPP kernel module could not be loaded, or because PPP was not
included in the kernel configuration. If PPP was included as a
module, try `/sbin/modprobe -v ppp'. If that fails, check that
ppp.o exists in /lib/modules/`uname -r`/net.
See README.linux file in the ppp distribution for more details.
I think(?) we need a customized kernel with ppp. So far, we have NTFS and CIFS support that's been added by some of the devs, here.
vectorcharlie said:
Let me know how it goes... I have been trying to connect my gtab but I thought I was the only person interested!
Sent from my DROIDX using XDA App
Click to expand...
Click to collapse
No luck. The PPPD file didn't make a difference. I guess I should not have been surprised. The L2TP connections are supposed to work so I may try that tomorrow - if I can convince the network admin to make the changes on the vpn server.
The lastest info I have been able to collect on this issue is that it has been known at google since 2.0 was released. They were having a problem keeping a connection using MPPE 128 over PPTP so instead of releasing something that did not work right, they removed support for it until a later date. Said date has not been determined.
I will keep you posted as I find out more.
roebeet said:
Tried your link, getting the same error I've seen in the past:
Code:
pppd: This system lacks kernel support for PPP. This could be because
the PPP kernel module could not be loaded, or because PPP was not
included in the kernel configuration. If PPP was included as a
module, try `/sbin/modprobe -v ppp'. If that fails, check that
ppp.o exists in /lib/modules/`uname -r`/net.
See README.linux file in the ppp distribution for more details.
I think(?) we need a customized kernel with ppp. So far, we have NTFS and CIFS support that's been added by some of the devs, here.
Click to expand...
Click to collapse
I came across this too. Since the ppp directory exists under system/etc I have made the assumption that there is support for it (at least under ztab 3.0). In order to check using the method above we would need a terminal app or some other way to run the commands. If there is a way to do it natively I am too new to know.
Any devs willing to tackle this issue?
Newanzer said:
No luck. The PPPD file didn't make a difference. I guess I should not have been surprised. The L2TP connections are supposed to work so I may try that tomorrow - if I can convince the network admin to make the changes on the vpn server.
...
I will keep you posted as I find out more.
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Click to collapse
No luck. The Net Admin decided it would be too much work just for a tablet test (and his iPAD VPN work just fine thank you). Anyone willing to try a L2TP test?
I have tried L2TP in Vegan with no success. used my android phone to verify settings and it works fine from there.
nephelim said:
I have tried L2TP in Vegan with no success. used my android phone to verify settings and it works fine from there.
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Click to collapse
Ok so that is 2 ROMs down:
TNT Stock - No option
Vegan - Not functional
Just need TNT light and Zpad Clean v3.0 tested. I'm suspecting that it will be no for both. This is starting to creep higher on my list of needs. Does anyone know of a ROM VPN works in?
I confirm that the advent vega rom has the same problem.
Unable to use vpn.
Newanzer said:
Ok so that is 2 ROMs down:
TNT Stock - No option
Vegan - Not functional
Just need TNT light and Zpad Clean v3.0 tested. I'm suspecting that it will be no for both. This is starting to creep higher on my list of needs. Does anyone know of a ROM VPN works in?
Click to expand...
Click to collapse
Do you need tun.ko/kernel support for this stuff? Clemsyn compiled that into one of his kernels - check his thread in the Development forum out, and give that kernel a try with the Vegan ROM, that might get you closer.
rcgabriel said:
Do you need tun.ko/kernel support for this stuff? Clemsyn compiled that into one of his kernels - check his thread in the Development forum out, and give that kernel a try with the Vegan ROM, that might get you closer.
Click to expand...
Click to collapse
That could be worth the check. I would like to see a list of exactly what his kernel supports before I try though.
[EDIT]: Checked change log. VPN module in kernel not mentioned.
Looking over the list of known issues at Google, this problem has been known for a while. The fact that Google hasn't addressed it worries me a bit. It is possible that since phones are the largest part of their OS client, VPN isn't a high priority. They may be waiting for the open source community to solve their problem for them.
Was able to get VPN working
YOU WILL NEED TO HAVE ROOT AND BUSYBOX INSTALLED. PLEASE MAKE A BACKUP IN CASE SOMETHING GOES WRONG.
1st you will need the new kernel found at the below address.
http://forum.xda-developers.com/showthread.php?t=903505
2nd you will need to insert the tun.ko included in with the kernel into /system/lib/modules/2.6.32.27-cyanogenmod folder on the tablet using root explorer.
3rd you will need to install the latest version of vpn from
http://code.google.com/p/get-a-robot-vpnc/downloads/list
4th install a terminal emulator and then you will need type the following commands
su (press enter)
cd /system/lib/modules/2.6.32.27-cyanogenmod (press enter)
insmod tun.ko (press enter)
You should now be able to connect on VPN.
there is very easy installation get and run vpn frome purevpn........
brainyjd said:
YOU WILL NEED TO HAVE ROOT AND BUSYBOX INSTALLED. PLEASE MAKE A BACKUP IN CASE SOMETHING GOES WRONG.
1st you will need the new kernel found at the below address.
http://forum.xda-developers.com/showthread.php?t=903505
2nd you will need to insert the tun.ko included in with the kernel into /system/lib/modules/2.6.32.27-cyanogenmod folder on the tablet using root explorer.
3rd you will need to install the latest version of vpn from
http://code.google.com/p/get-a-robot-vpnc/downloads/list
4th install a terminal emulator and then you will need type the following commands
su (press enter)
cd /system/lib/modules/2.6.32.27-cyanogenmod (press enter)
insmod tun.ko (press enter)
You should now be able to connect on VPN.
Click to expand...
Click to collapse
Sorry for asking this noob question, but is this VPN fix only for Cyanogenmod, or will work with others, such as TnT Lite?
I'm running TnT lite and there no's VPN setup option.
tnt is missing the vpn shortcut
use VPN Show
Kazuyuki Eguchi/Tools
found in android market to access the vpn menu
i have used with sucess on most roms open vpn and open vpn settings
with out problems just by install them and setting it to auto run at start
with install to xbin and create a folder on internal sd "openvpn"
then place a vpn.conf file there
then connect this cause an error but causes super user to give it root rights
after that all my vpn,s work with out going near openvpn
purevpn said:
there is very easy installation get and run vpn frome purevpn........
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Click to collapse
Please elaborate...
Thanks!
I am trying To connect my Eris to my vpn using openvpn settings, but heard that the roms kernel needs to have tun support embeded. So like I said in the title which roms support it? I have kaosfroyo. Also can I access my network shares via openvpn settings?
sabot105mm said:
I am trying To connect my Eris to my vpn using openvpn settings, but heard that the roms kernel needs to have tun support embeded. So like I said in the title which roms support it? I have kaosfroyo. Also can I access my network shares via openvpn settings?
Click to expand...
Click to collapse
Conap built CFS v9 with TUN support (as a kernel module). See for yourself by searching for "TUN" in his Dec 4th commit, or by inspecting his V9 download (in system/lib/modules).
Whether or not ROM devs included all of those kernel modules - or, more importantly, performed an "insmod" at some place during initialization to load the module into the kernel (by default) is different matter. But, that is certainly something that you could do on any CFSv9 ROM with a root-privileged script; just make sure you install the matching kernel module to the kernel you are using. Depending on what the dev does with "include" directives out of the /init*rc scripts, you might be able to make an insmod automatic at boot with something in /system/etc/init.rc.local (or whatever it is named).
If you want, you can peruse Conap's .config release history to see if different kernels were built with TUN support - his kernels are in lots of Eris ROMs. I didn't look through it exhaustively, but it looks like he also built it for V8.
cheers
my kernel is from conap version 2.6.29. im having trouble connecting to the server via openvpn settings. i installed the openvpn installer and openvpn settings, also the tun.ko file i moved to the modules folder, i think i did everything right but still i get an error fatal: cannot allocate tun/tap dev dynamically. what does that mean?
I think it means you've got some more analysis work to do.
Normally I might be motivated to help (I've done a fair bit of network admin incl. tunneling setups, and find it interesting work), but I don't have ready access to a configured server... so I would have to configure both a server and the phone in order to help out further. A bit too much volunteer work for me, I'm afraid.
Good luck... and remember that Google is your friend!
So I got my LG optimus one today. Love the phone. I noticed that stock rom and even most other roms on here don't support the ability to be able to connect to ad hoc wifi networks.
So I found this and took a risk to flash it. Works 100% I am now able to connect to a ad hoc network easy. Pretty decent.
http://forum.xda-developers.com/showthread.php?t=754961
I'm just posting to let you know that it works on the optimus one.
Versions
The wpa_supplicant file comes in different versions. You should test which one is running on your device before applying the patch.
Which can be done by a shell, either through adb shell or by using an app like ConnectBot. Run the command wpa_supplicant -v.
If you see v0.5.11 it should work.
Mik's CM7 b6.4.2 ( and most previous ones ), LOL, etc. -> all of them support ad-hoc.
Actually, ad-hoc support was disabled ( & still is ) by google due to " Security Reasons ".
Someone in another forum first enabled this by editing the wpa_supplicant. All the ad-hoc connections, using that wpa_supplicant, showed up with a (*). Mik's and others integrated or themselves enabled the ad-hoc connections. Now they show up normally ( as in, without (*) ). -> Just some info
If a kernel does not have the Advanced Routing feature (which is needed for VPNC widget - Cisco VPN) is it possible to add this via module like tun.ko module?
The Adv. Routing is not needed for connecting but the connection is soon lost.
I found information pointing to the CONFIG_IP_ADVANCED_ROUTER option in the Linux kernel config.
On plain Linux, this can not be a module, it just makes a few more options visible that affect routing. These cannot be modules either.
If the Android kernel is not very different, you can't get this as a module.
btw, I found that someone enabled this, but VPNC still complains. Maybe it doesn't detect correctly what it wants, and its information is not precise enough.
I used the towelroot method and it seems to have gotten my phone rooted. A basic root checker confirms it. I installed SuperSU and when I open it, the app says the binaries need to be updated, however it fails to do that when I click "normal". I also installed the Wireless Tether for Root Users app (play version and the v3.2 beta when that wasnt' working). I've tried various configurations to no avail. It pops up asking for root access from SuperSU which I grant. When I start the tethering it says there are errors and to check the log file, however when I click on "show log" it says "unable to find log-file. File does not exist". I've also tried Barnacle WiFi tethering and it doesn't work either.
Any advice is appreciated.
Algo2 said:
I used the towelroot method and it seems to have gotten my phone rooted. A basic root checker confirms it. I installed SuperSU and when I open it, the app says the binaries need to be updated, however it fails to do that when I click "normal". I also installed the Wireless Tether for Root Users app (play version and the v3.2 beta when that wasnt' working). I've tried various configurations to no avail. It pops up asking for root access from SuperSU which I grant. When I start the tethering it says there are errors and to check the log file, however when I click on "show log" it says "unable to find log-file. File does not exist". I've also tried Barnacle WiFi tethering and it doesn't work either.
Any advice is appreciated.
Click to expand...
Click to collapse
until you have updated your binaries, rooted apps will do this....
if you have safe strap installed and working, you can download the updated SU 1.99 zip and flash it thru safestrap....other methods are talked about I believe in the towel root threads but I haven't done that myself
Algo2 said:
I used the towelroot method and it seems to have gotten my phone rooted. A basic root checker confirms it. I installed SuperSU and when I open it, the app says the binaries need to be updated, however it fails to do that when I click "normal". I also installed the Wireless Tether for Root Users app (play version and the v3.2 beta when that wasnt' working). I've tried various configurations to no avail. It pops up asking for root access from SuperSU which I grant. When I start the tethering it says there are errors and to check the log file, however when I click on "show log" it says "unable to find log-file. File does not exist". I've also tried Barnacle WiFi tethering and it doesn't work either.
Any advice is appreciated.
Click to expand...
Click to collapse
The version of SuperSU on the playstore is outdated, you have to do the folowing:
5. Download http://download.chainfire.eu/448/SuperSU/UPDATE-SuperSU-v1.99r5.zip
6. Use ES File Explorer https://play.google.com/store/apps/details?id=com.estrongs.android.pop or other unzipers and unzip the file
7. Open the /common folder in the unzipped file, and copy the SuperUser.apk to the /system/app/ folder in the root of the phone, confirm any SuperUser Access requests at this point.
You can also use the safestrap method:
Note: SafeStrap doesn't work with encryption turned on (disabled by default). If you don't know if you don't have encryption on/your phone isn't a business phone (in which case you shouldn't be doing this!!!) then you most likely don't have encryption on!!
5. Use this app to change your SELinux mode to "Permissive" https://play.google.com/store/apps/details?id=com.mrbimc.selinux, this is required to use SafeStrap
6. Install SafeStrap 3.72 APK from this thread http://forum.xda-developers.com/showthread.php?t=2448925, NOT 3.71 FROM THE VERIZON THREAD!!! Then click install in the SafeStrap App
7. Flash http://download.chainfire.eu/448/SuperSU/UPDATE-SuperSU-v1.99r5.zip, this step is NOT OPTIONAL, without this file, your SU Binaries will not update!!! (This is important!)
Credits to @npjohnson
SuperSU in the Playstore has been updated top 2.0 and is the latest, greatest version now.