From b92294fc527b121a6708eafe7827b3921b472e71 Mon Sep 17 00:00:00 2001
From: hiura2023 <hiura_mrmr@yahoo.co.jp>
Date: Thu, 8 Jan 2026 13:27:10 +0900
Subject: [PATCH] Fix: Kernel-mode NAT not available due to DHCP unfunctional

---
 src/Cedar/IPC.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Cedar/IPC.c b/src/Cedar/IPC.c
index eeed8f7d..36e69fd8 100644
--- a/src/Cedar/IPC.c
+++ b/src/Cedar/IPC.c
@@ -567,6 +567,9 @@ IPC *NewIPCBySock(CEDAR *cedar, SOCK *s, void *mac_address)
 	ipc->Sock = s;
 	AddRef(s->ref);
 
+	// Initialize to pass the validity check on the source IP address performed by IPCSendIPv4()
+	ZeroIP4(&ipc->ClientIPAddress);
+
 	Copy(ipc->MacAddress, mac_address, 6);
 
 	ipc->Interrupt = NewInterruptManager();