How to determine next available network interface name and ip range?

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                          I am working on an application which can create TUN/TAP interface on host machine. I can create such interfaces using:

    sudo ip tuntap add tap0 mode tap

Now the thing is, tap0 is hardcoded here. It should be dynamic. 

When I create next tap device, it should be tap1 and so on. 

Now when I go ahead to give range to the device, I can manually do like this:

    sudo ip addr add 172.16.0.1/24 dev tap0

Now when I create tap1, I don't want to overlap the ip. 

Is there any easy way to manage these tap devices?

Asked by Santosh Kumar (4203 rep)

Jul 25, 2022, 09:28 AM
Last activity: Jul 25, 2022, 08:15 PM

How to determine next available network interface name and ip range?

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