← All Kali Issues
Yersinia

Protocol not available

C Configuration Medium

🔴 Error Message

Selected protocol attack not supported

📖 What This Means

Protocol module missing or disabled.

🔧 Step-by-Step Fix

  1. Check available: yersinia -h
  2. Supports: STP, CDP, DTP, DHCP, IEEE 802.1Q
  3. Install full version: apt install yersinia