Would one of the Dev's be willing to tackle getting VPN PPTP with encryption (mppe 128 or 256) working on the G-Tab? Right now it is either not working or working as unsecured PPTP (depending on the ROM). If anyone knows of a ROM where this is functional please let me know.
What little I have found on the history of VPN in android indicates that the last version with encrypted PPTP was version 1.6. Google was having problems keeping a connection to the VPN server.
Reference: http://code.google.com/p/android/issues/detail?id=4706
For myself and my coworkers this has become an important need. If we can't get the feature we may be forced to get iPads (*cringe*). I for one am willing to make donations to Dev(s) who can add this. Some ROMs have the option but seem to be lacking the module (unconfirmed) to handle encryption through the included PPPD.
It is possible this may come back in Android 3.0 since it is geared toward tablets but I haven't been able to find any information either way.
Thank you for your time.
Newanzer said:
Would one of the Dev's be willing to tackle getting VPN PPTP with encryption (mppe 128 or 256) working on the G-Tab? Right now it is either not working or working as unsecured PPTP (depending on the ROM). If anyone knows of a ROM where this is functional please let me know.
What little I have found on the history of VPN in android indicates that the last version with encrypted PPTP was version 1.6. Google was having problems keeping a connection to the VPN server.
Reference: http://code.google.com/p/android/issues/detail?id=4706
For myself and my coworkers this has become an important need. If we can't get the feature we may be forced to get iPads (*cringe*). I for one am willing to make donations to Dev(s) who can add this. Some ROMs have the option but seem to be lacking the module (unconfirmed) to handle encryption through the included PPPD.
It is possible this may come back in Android 3.0 since it is geared toward tablets but I haven't been able to find any information either way.
Thank you for your time.
Click to expand...
Click to collapse
Did you try one of clemsyn's latest kernels - they have the tun support. Also on market place there is an OpenVPN app that attempts to install an openvpn binary - that same dev also has an OpenVPN settings app that you can use to create your tunnel. Perhaps that will work for you.
prscott1 said:
Did you try one of clemsyn's latest kernels - they have the tun support. Also on market place there is an OpenVPN app that attempts to install an openvpn binary - that same dev also has an OpenVPN settings app that you can use to create your tunnel. Perhaps that will work for you.
Click to expand...
Click to collapse
I can currently get a VPN connection, but the server refuses it because it isn't encrypted - even with the encryption option on. I'll try clemsyn's kernel. I noticed he posted one specific to the ZTab ROM recently.
Newanzer said:
I can currently get a VPN connection, but the server refuses it because it isn't encrypted - even with the encryption option on. I'll try clemsyn's kernel. I noticed he posted one specific to the ZTab ROM recently.
Click to expand...
Click to collapse
PLEASE keep us updated. This is also essential to my job and I want to use android! GTab in particular.
jmdearras said:
PLEASE keep us updated. This is also essential to my job and I want to use android! GTab in particular.
Click to expand...
Click to collapse
No luck. Tried the new kernel and still get the same error. G-Tab shows connection lost. Server log shows same error (port 47 blocked or unable to negotiate encryption). Since our laptops all work I'm going to assume port 47 isn't blocked on our network. Maybe not enabled on G-Tab?
Which ROM are you using?
EDIT: nevermind - I see zpad rom. Did you try the vegan rom or tnt rom?
I am setting up a server with two cards and windows server 8 and an accesible ip just as test lab for this. If any dev wants access pm me.
Sent from my DROIDX using XDA App
Newanzer said:
Would one of the Dev's be willing to tackle getting VPN PPTP with encryption (mppe 128 or 256) working on the G-Tab? Right now it is either not working or working as unsecured PPTP (depending on the ROM). If anyone knows of a ROM where this is functional please let me know.
What little I have found on the history of VPN in android indicates that the last version with encrypted PPTP was version 1.6. Google was having problems keeping a connection to the VPN server.
Reference: http://code.google.com/p/android/issues/detail?id=4706
For myself and my coworkers this has become an important need. If we can't get the feature we may be forced to get iPads (*cringe*). I for one am willing to make donations to Dev(s) who can add this. Some ROMs have the option but seem to be lacking the module (unconfirmed) to handle encryption through the included PPPD.
It is possible this may come back in Android 3.0 since it is geared toward tablets but I haven't been able to find any information either way.
Thank you for your time.
Click to expand...
Click to collapse
Try this, I enabled everything re: PPP in this kernel including PPTP and also enable MPPE (Microsoft PPP Encryption). I hope this helps. BTW, this MPPE is experimental in the kernel but I hope it works for you.
clemsyn said:
Try this, I enabled everything re: PPP in this kernel including PPTP and also enable MPPE (Microsoft PPP Encryption). I hope this helps. BTW, this MPPE is experimental in the kernel but I hope it works for you.
Click to expand...
Click to collapse
Brillant! I have a connection! From home even. Many Thanks! (but I can only hit the button once...)
I'll keep an eye on it and see how long the connection lasts. That seemed to be the bug that killed Google's interest in this. With luck it wont show because someone tweaked over it.
I'll spread the word. Thanks again!!
Update: Unfortunately the data traffic stops within a minute. The connection stays up and reports a server connection just no data passes. This is the same issue as Google has in it's bug report. I"ll look at the server logs in the morning to see if anything is reported, but it is at least a step in the right direction.
BTW: The GUI seems a bit faster. Were there any other tweaks in that kernel?
Newanzer said:
Brillant! I have a connection! From home even. Many Thanks! (but I can only hit the button once...)
I'll keep an eye on it and see how long the connection lasts. That seemed to be the bug that killed Google's interest in this. With luck it wont show because someone tweaked over it.
I'll spread the word. Thanks again!!
Update: Unfortunately the data traffic stops within a minute. The connection stays up and reports a server connection just no data passes. This is the same issue as Google has in it's bug report. I"ll look at the server logs in the morning to see if anything is reported, but it is at least a step in the right direction.
BTW: The GUI seems a bit faster. Were there any other tweaks in that kernel?
Click to expand...
Click to collapse
There is a cryto sha 256 or 512. Lmk which to enable
clemsyn said:
Try this, I enabled everything re: PPP in this kernel including PPTP and also enable MPPE (Microsoft PPP Encryption). I hope this helps. BTW, this MPPE is experimental in the kernel but I hope it works for you.
Click to expand...
Click to collapse
This is awesome - and just what I was looking for! Any chance you could post the Vegan version as well? Thanks so much!
Hi Clemsy,
Thanks again for all the great work you're doing. If you could also do this for vegantab it would be greatly appreciated.
Cheers
Jonesie
How do I install this file?
Jonesie18 said:
Hi Clemsy,
Thanks again for all the great work you're doing. If you could also do this for vegantab it would be greatly appreciated.
Cheers
Jonesie
Click to expand...
Click to collapse
I might have to take a pause on this since I'm having issues with my Gtab at the moment. My screen turned white and I can't see a thing. I was playing angry birds and noticed that my screen sensitivity turned bad and a few seconds later it turned all white. I might have to get a replacement for my Gtab
I can build the kernel for Vegan tab but there is no way for me to test it but it should work fine
I read a post that doing this might fix it:
Add the following to /etc/pptpd.conf
mru 1280
mtu 1280
Please try and see how it goes.
More Info
I had our network admin look at the VPN server logs for my connection. No errors or warning from the server.
One interesting thing to note, it seems that when the data transfer between the tab and the VPN server stops it's only one way. I was able to send mail out from the tab, but not receive mail or view web pages. I'm wondering if the decryption side (incoming to tab) of MPPe is broken. That could explain why the server keeps a connection, but the data flow seems to stop.
Could we steel code from a linux kernel that works?
clemsyn said:
I read a post that doing this might fix it:
Add the following to /etc/pptpd.conf
mru 1280
mtu 1280
Please try and see how it goes.
Click to expand...
Click to collapse
I don't have a pptpd.conf in /etc. What is the file syntax? I'll make one and copy it in. I'm assuming this is ./etc and not ./system/etc.
Edit: Never mind found info here: http://www.linux.org.au/~quozl/pptp/pptpd.conf.5.html
Edit Edit: Ok I think I have reached the level of my ignorance. How do you get a file copied to /etc? I have tried a file manager with SU permissions, and a terminal with SU permissions. In both cases I am getting a permission denied error. What's the secret?
Newanzer said:
I don't have a pptpd.conf in /etc. What is the file syntax? I'll make one and copy it in. I'm assuming this is ./etc and not ./system/etc.
Edit: Never mind found info here: http://www.linux.org.au/~quozl/pptp/pptpd.conf.5.html
Edit Edit: Ok I think I have reached the level of my ignorance. How do you get a file copied to /etc? I have tried a file manager with SU permissions, and a terminal with SU permissions. In both cases I am getting a permission denied error. What's the secret?
Click to expand...
Click to collapse
Upload the file and ill make a zip file for you to flash it.
So close ... I think Google may need to work out a few of their bugs first.
First off a big thanks to clemsyn for the hard work. (I used Root Explorer to copy the file pptp.conf)
Using the latest kernel posted here for VeganTab I was able to connect to a MS PPTP VPN and ping for a long while however just like my Samsung Vibrant the VPN appears to die once a burst of traffic is shot through the tunnel. The tunnel I have discovered is not disconnected but unusable through the Android system. If I disconnect the VPN session remotely the log files indicate that the remote server killed the connection. Not sure much can be done as now I feel I am hampered by Google's inability to care for VPN access. I am sure the developers here can figure this out but why should they have to figure this out when it seems to be a fundamental issue with Google's code. Maybe this disconnection does not happen with OpenVPN? Anybody use it? I am tempted to setup a test OpenVPN server just to see how long I can keep my connection.
BTW ... After remotely killing the VPN connection the VPN services crashes and throws up an exception in the back ground when terminating the service.
Not working. I might try without the encryption in the server side to check if that works. It actually connects (pings) a couple of seconds with the LAN computers... then it nevers connects again... even with reboots. Does the pptpd.conf only need those two lines?
I found this site which may help
http://code.google.com/p/android/issues/detail?id=6402
A user stated this:
"Hey! Saw another post elswhere in the forum. For Microsoft VPN using PPTP, I think it helps to disable Software Compression in Routing and Remote Access Manager on the Windows server hosting VPN. After I did that, I was able to connect to VPN.
In Routing and Remote Access Manager, right click on the server in the tree and select Properties. Then, under the PPP tab, uncheck Software Compression. I am the Sys Admin at my Co, so I was able to do this myself. Others may have to submit a request to your respective Sys Admins. Besides, who uses compression on VPN's since the death of Dial-up?
Good Luck!"
Guys, what are you using to connect to VPN? I'm looking for a good client that I can use to connect to my job...
For argument's sake I'll assume you've rooted your TF (a requirement for using the TUN module which I think SSL VPNs need). [EDIT]: Didn't see your sig before, now I know you've rooted your TF . My VPN provider supports SSL connections via OpenVPN which I've used before on my phone without issues, but so far I've not been able to get it working on my TF with the PRIME! v1.5 ROM. Give it a try if your TF is rooted and see what happens.
See: http://forum.xda-developers.com/showthread.php?t=1125996
OpenVPN is SSL, it just be default uses a different port. 1193 from memory.
I can configure SSL VPN on my firewall and use OpenVPN to connect to it.
Requires that you have a working set of OpenVPN config files of course.
I'm interested in setting up VPN between my home computer and my Skyrocket. But before I go through the process, I wanted to ensure that VPN (and tun module) is available/possible in the stock Skyrocket kernel. The "OpenVPN Installer" and "OpenVPN Settings" android apps indicate that "tun" module must be available on the phone and this seems to be the case for NON-stock ROMs.
If VPN is available in stock rom, can anyone recommend a good walkthrough for setup?
The phone has built in vpn but it's. Very flawed. Most encrypted connections will die after a few min.
This is an android-wide problem and according to forum posts, has existed for years.
Sent from my SAMSUNG-SGH-I727 using xda premium
Does that include third party vpn solutions like openvpn? I was hoping to use vpn for tethering uses.
As long as openvpn supports pptp ipsec or l2tp then yes it will work.
Sent from my SAMSUNG-SGH-I727 using xda premium
After reading this thread, I'm not sure this is necessarily the case. There it is claimed that the required TUN/TAP driver for VPN on the Skyrocket isn't in the stock ROM:
http://forum.xda-developers.com/showthread.php?p=19963725#post19963725
The built in vpn solutions are fine, but rather complicated, and geared more towards those who use enterprise VPN solutions, like the Cisco VPN Concentrators and such.
If you want to use the built in vpn client, you can use raccoon (runs on linux, *bsd and a bunch of others) as the vpn server, but it is a total ***** to configure.. hell, it is a total ***** and a half.
One we start getting more custom kernels out, the developers will start to include the tun driver into the kernel, and we can use openvpn which is simple to setup.
I have a transformer prime running ICS. when I use terminal emulation, I can not make my nslookup work. I can ssh to any server by IP but could not resolve DNS. My TP can get on internet no problem but for some reason, the terminal did not work with any DNS.
Where is the resolve.conf? How the android setup network interface? DNS?
Does anyone had the same issue?
chao0129 said:
I have a transformer prime running ICS. when I use terminal emulation, I can not make my nslookup work. I can ssh to any server by IP but could not resolve DNS. My TP can get on internet no problem but for some reason, the terminal did not work with any DNS.
Where is the resolve.conf? How the android setup network interface? DNS?
Does anyone had the same issue?
Click to expand...
Click to collapse
Yea, there's a lot of threads over the internet about this specific issue. The people that 'know their crap' say that we (like we compiled the binaries or something) compiled without the correct libraries.
Problem is, I didn't compile shiz, so they should really yell at the devs to compile with the correct libraries... OR tell us how to link the correct libraries AND give us a link to the correct binaries.
!!EDIT!!
Turns out, if you use the jrummy busybox installer to update busybox to the latest release, the terminal apps you use aren't updated (because of obvious reasons) so you have to do a little hacking for it to use the correct binaries (like, say remove their system dirs and link to xbin?)
When the first developer preview came out, there were problems with OpenSSL. Apps that needed to connect to https servers seemed to all suffer from the same problem.
Developer Preview #2 solved this, and I've run various AOSP builds on my Nexus 5 and my Nexus 9 where the issue seems to be gone. Today however, I decided to install the latest factory images on both devices and guess what? I cannot connect to SSL servers once-more.
Anyone know what the situation is here?
How are you connecting? And what to? I only really connect to SSH tbh.
rootSU said:
How are you connecting? And what to? I only really connect to SSH tbh.
Click to expand...
Click to collapse
Well just as one example, Subsonic, my music-streaming service. None of the Android clients can connect to my server if I turn on SSL.
Hi! I also have SSL connection problem using nexus 9 and openssl0.9.8zg.
Does anyone have tried using openssl armv8 64 for their app using nexus 9?
Your help is highly appreciated.