I’m not sure what you mean by "full piece" — I’ll assume you want a complete, step-by-step LAN fix guide for Resident Evil 6 so local multiplayer and LAN play work. I’ll provide a concise, actionable guide covering Windows versions, port forwarding, host file edits, firewall rules, and common troubleshooting. If you meant something else (e.g., a mod or patch file), say so and I’ll adjust.
If you were looking for the actual plot of the game you’re trying to play over LAN, Resident Evil 6 features four interwoven campaigns: resident evil 6 lan fix fix
C:\Program Files\Steam\steamapps\common\Resident Evil 6\RE6\Game and find the config folder. Open config.cfg with a text editor and set network_mode 1 and lan_mode 1.