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How do I know which applications are creating utun interfaces?

I can see multiple utun* interfaces from the output of the ifconfig command. I know utun0 and utun1 are system interfaces. utun2 is the tunnel interface for my VPN client. But I cannot find out which application is creating utun3-6 interfaces. I also don't see them in the netstat -rn output.


Posted on Sep 18, 2021 1:55 AM

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Posted on Sep 18, 2021 2:14 AM

If anyone interested I have found some kind of workaround:

sudo lsof | grep utun

It gives me brief understanding of what process is handling utun interfaces.


So it turns out that identitys creating big amount of utun interfaces.

Next question is why...

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How do I know which applications are creating utun interfaces?

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