← All Kali Issues
OpenVPN
Cannot allocate TUN
N Network
Critical
🔴 Error Message
ERROR: Cannot allocate TUN/TAP device
📖 What This Means
TUN kernel module not loaded.
🔧 Step-by-Step Fix
- Load module: sudo modprobe tun
- Check: ls /dev/net/tun
- In Docker: run with --cap-add=NET_ADMIN --device=/dev/net/tun
- In VM: enable TUN/TAP in VM settings