Ubuntu14.04 Virtual Network Device tun installation

1, the detection system exists Tun module, ctrl+alt+t open Ubuntu terminal, enter:

①modinfo Tun
Modinfo:ERROR:Module Tun not found.
②modprobe Tun
Lsmod | grep Tun
Without any output

Which means there's no such Tun module

2. Update Ubuntu

① Log in as root

Input: su

Password

If you forget your password, use:sudo passwd root to reset your password

② Synchronous Source.list

Input: Apt-get update

After the update is successful

Input: Apt-get Install Linux-source

Y

3. Configuration Module Driver

① Input: cd/usr/src/linux-source-3.13.0/

Note the folder path, in the previous step apt-get install Linux-source, the terminal displays

Here you can see that the path should be 3.13.0

② Decompression (Note: If you use the virtual machine, to ensure that the virtual machine space is large enough, I have just started to use the VBox default 8G space, there is a lack of space hints)

Input: Tar xvjf linux-source-3.13.0.tar.bz2

③ into the unpacked directory: CD linux-source-3.13.0/

④ installation Libncurses5-dev

Input: Apt-get Install Libncurses5-dev

⑤ Input: Make Menuconfig

Pop-up window

Find and enter: Device Drivers---->

Find and enter: Network Device Support--->

You can see universal TUN/TAP device driver Support

See Front is <*>, keyboard input M, turn <m>, exit and save, back to Terminal

Note:[*],<*> is compiled into the kernel,<m> to compile modules, if you do not know an option, and there is a module optional, then you can directly select the module

⑥ compiling all the module drivers

Input: Make modules

This process takes a period of time (1-2 hours), and the same is true to ensure that the virtual machine space is large enough

4. Add modules to the kernel

① Copy Tun

Input: cp/usr/src/linux-source-3.13.0/linux-source-3.13.0/drivers/net/tun.ko/lib/modules/3.13.0-32-generic/kernel/ Net/tun.ko

Note: The version number will change to see the generic version under your/lib/modules/

② analysis of the dependencies of the loaded modules

Input: Depmod

5. Verification

Input: Modinfo Tun

Can print out the information of Tun

6. Load Kernel module

Input: Modprobe Tun
Lsmod | grep Tun

Output: Tun 10548 1

After the use of Tun, see http://www.tuicool.com/articles/mu6vY3

Reference: http://blog.csdn.net/jayxujia123/article/details/37767189