From c8eb21b717594e37ac6dd8cd7e11b403f718f409 Mon Sep 17 00:00:00 2001
From: Skyxim <noreply@skyxim.com>
Date: Sun, 16 Oct 2022 17:44:03 +0800
Subject: [PATCH] fix: skip sending a connect packet when ip is unspecified

---
 outbound/default.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/outbound/default.go b/outbound/default.go
index 4b357f8a..73d1f70e 100644
--- a/outbound/default.go
+++ b/outbound/default.go
@@ -79,7 +79,9 @@ func NewEarlyConnection(ctx context.Context, this N.Dialer, conn net.Conn, metad
 func NewPacketConnection(ctx context.Context, this N.Dialer, conn N.PacketConn, metadata adapter.InboundContext) error {
 	switch metadata.Protocol {
 	case C.ProtocolQUIC, C.ProtocolDNS:
-		return connectPacketConnection(ctx, this, conn, metadata)
+		if !metadata.Destination.Addr.IsUnspecified() && metadata.Destination.Port != 0 {
+			return connectPacketConnection(ctx, this, conn, metadata)
+		}
 	}
 	ctx = adapter.WithContext(ctx, &metadata)
 	var outConn net.PacketConn