From 6898f946fa3619c60f4053d04773007013ecbd20 Mon Sep 17 00:00:00 2001
From: PoliEcho <poliecho@pupes.org>
Date: Sun, 3 Aug 2025 13:38:18 +0000
Subject: [PATCH] Update README.md

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index 75cfb5f..2d04631 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,10 @@ this program is intended to help you play LAN games over internet
 when all clients are behind Full-cone NAT, does not work with clients behind Symmetric NAT  
 at least for now  
 
+
+> [!WARNING]  
+> Piercing NAT may fail based on network configuration
+
 ## how to run  
 > install rustc and cargo or rustup, you will need 2024 edition  
 > build using