How to change TTL on Android

_
7 102
1

Based on the definition, TTL (Time to live) is the lifetime of a data packet directly in the IP protocol. In more detail, for a computer network, this indicator corresponds to the range 0-255.

Most Android devices (and iOS too) have an initial TTL value of 64. In a Windows-based computer, its value will be from 128. Each signal transition from device to device will decrease the value of this number by one. After spending many jumps between clients, this indicator at some point becomes zero. As a result, all information from this package is destroyed automatically. ISPs use the TTL value to track unauthorized connections from other devices and disable network access.

So in this article I will describe two methods for changing the TTL, with and without root.

Change TTL on Android without root

Changing the TTL value without root is possible, but not on all Android devices. To make a TTL change on Android without root, we'll need to install Terminal Emulator.
  1. Install and run the application and enter the following command in it:
    cat /proc/sys/net/ipv4/ip_default_ttl
    Check if the input is correct, then press Enter on your Android keyboard.
  2. If the device allows adjustments without root, then you'll see the standard TTL value. Change the TTL value to a new one. Press Enter.
  3. Done, reboot the device and check the functionality.
This method does not work on all devices, and often users receive the following error:
Then, you'll have to get root rights to change the TTL on your device.

Change TTL on Android with root

The task is simplified if the device has root access. In this case, you can change the TTL either using a special application or manually by editing one of the system files.

TTL Master

The best method to change the TTL value is to use a dedicated app. In our case, we will be using the TTL Master Android app.

This application can only be used with root access.
  1. Install and run the application.
  2. In the main window of the application, you can view the current value of the parameter. Below is the field Enter TTL, tap on it. Next, enter the required TTL, and click Apply.
  3. If you receive a message about a successful TTL change, reboot the device. Done.

ES File Manager

On some devices, the only method to change the TTL is to manually overwrite the parameter in the configuration file. For this operation, we need a file manager with root access, for example, ES File Manager.

  1. Switch your device to Airplane mode to disconnect it from all networks.
  2. Launch ES File Manager.
  3. Go to the following path proc/sys/net/ipv4 and find the ip_default_ttl.
  4. Open this file with a text editor and replace the TTL value with any other.
  5. Save changes and close the file. Reboot your device.

Conclusion

Above, we talked about changing the TTL on an Android OS phone. Some people use this instruction to bypass ISP traffic blocking. However, this is not the only purpose for which this parameter is being changed. In any other cases, the changes are made in the same way, only now you need to enter a different number required for your task.

I would be grateful if you shared this information

Comments (1)