How do I use /dev/net/tun
 

I am using Redhat 8 on x386 architecture and the /dev/net/tun device exists. How do I go from there to a /dev/tun0 , which, as of now, does not exist?

2.4.x kernels and above use /dev/net/tun . Earlier kernels use /dev/tun . What are you trying to do, use OpenVPN or something similar?

The source for the Universal TUN/TAP Driver contains the appropriate mknod scripts for your kernel.

/dev/tun etc.
 

Okay, in Redhat 9 a /dev/tun0 device exists and I use it to tunnel in from another network. I want a /dev/tun0 in RH8 so I can ifconfig it. No, it's not for VPN - I have a simulator app running under Linux in which I *have* to tunnel in.