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Questions tagged [android-vpn-service]

101 questions
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Programatically setting Always-On VPN, "Admin does not own the profile"

I'm trying to figure out how to configure my VPN application to toggle the Always-On flag from within the application with a toggle. I'm aware of DevicePolicyManager#setAlwaysOnVpnPackage However, it's not very clear how to use this function. I have…
Nathan F.
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How does Android know that it has to direct allowed vpn application to tun0

This is an internal Android question. I would like to have a clear understanding on what happens when vpn tunnel is established with only specific apps allowed through it using "builder.addallowedapplication() " method. This is similar to how you…
Mike
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Android VPN (ikEv2) Client

I am trying to create android client for VPN using IKEv2 protocol, but on this topic there is almost no help to get started. Our backend team have provided me remote_server_url, username and password. I was able to create iOS client successfully…
Asad Hayat
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Is there a way to see which app sent data to Android VPN Service

I am currently using Hexene's LocalVPN implementation of Android's VPNService to monitor network traffic from my Android device. However, I was wondering if it was possible to see which app sent a particular packet. I have tried searching online,…
user3307598
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How to block application network request using VPNService?

I hope you all are well. I have implement VPNService in My application. I have refer https://github.com/hexene/LocalVPN github code to create the VPN. I want to know about the request/response, How to know Which application send the request or…
Chirag Parmar
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Can not browse anything after connecting to a tunnel

So, I was going through the guide of connecting to a VPN using an applicaton from here guide . What I really want is to make my own VPN app by using free DNS available on the internet. Because I want to have DoH (DNS over Https)and full security.…
Ashutosh Soni
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Connecting to a VPN in MainActivity.kt (Kotlin)

Is there a simple way to connect to a VPN using VpnService from Android Studio (Kotlin)? I have read the developer.android.com documentation, but as a new Kotlin developer, I am very confused. I know that there is a Sample VPN app (ToyVPN), but the…
user11709129
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How do you determine the multicast groups an Android 10 device has joined?

In Android 9 and below we read /proc/net/igmp to determine this in our VPN app. Android 10, however, has understandably locked down the data in /proc/net. (see here) Is there an "official" way to get the multicast groups a device has joined? Or…
Grant Limberg
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VpnService always-on "not supported by this app"

I'm trying to write a VPN application for android, and no matter what I do it seems that the "Always On" setting for my application is grayed out. I cannot find any documentation anywhere in the android docs that states WHY a VpnService might not be…
Nathan F.
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VpnService - update network parameters

I have a VPN service, using ParcelFileDescriptor, and a builder to set the network parameters. Something like this code: private Builder builder = new Builder().setSession("myService") .addAddress(...) …
Witterquick
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What kind of protocol is used in android ToyVPN?

In respect of ToyVPN (a sample client/server VPN for android), as far as i know it has no strong authentication and encryption like L2TP,PPTP, ... So, 1- What kind of protocol is used in ToyVPN? 2- Is it safe? I mean can somebody hack into the VPN…
AMIR
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Android How VPNService commuicates with Internet

I am trying to create Android sample vpn app. I am created VpnService by referring to https://developer.android.com/guide/topics/connectivity/vpn#java VpnService.Builder builder = new VpnService.Builder(); // Create a local TUN interface using…
Aada
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Android Close VPN Connection

I am developing an android application that has to be connected to a VPN through an external application. I am currently using the following code to check the open connections, and in case you do not have a VPN enabled, create an intent to the…
Fernando
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Create a VPN profile programatically Android

I've been parsing the web for a way to create a VPN client on Android. I can't seem to find any good resources on how to do this. The goal is , I would like to be able to setup a VPN using either the built in VPN feature in Android (perhaps…
fitzmode
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what is Android VpnService.Builder setBlocking

My question is: what does it really do? For instance, if I set it to true, what does it do to packages (datagrams?) that I want to write to the TUN device? As far as I noticed it does not mean that all packets to be written to the TUN device will be…
itarill
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