From 2920c418d70bf9fb8466c68795e2d261ad924199 Mon Sep 17 00:00:00 2001
From: Shreyas Zare <shreyas@technitium.com>
Date: Sat, 11 Mar 2023 15:12:34 +0530
Subject: [PATCH] AdvancedForwarding: Updated ProcessRequestAsync() to check if
 request has RD flag set before forwarding.

---
 Apps/AdvancedForwardingApp/App.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Apps/AdvancedForwardingApp/App.cs b/Apps/AdvancedForwardingApp/App.cs
index bbed2e56..996a504b 100644
--- a/Apps/AdvancedForwardingApp/App.cs
+++ b/Apps/AdvancedForwardingApp/App.cs
@@ -164,7 +164,7 @@ namespace AdvancedForwarding
 
         public Task<DnsDatagram> ProcessRequestAsync(DnsDatagram request, IPEndPoint remoteEP, DnsTransportProtocol protocol, bool isRecursionAllowed)
         {
-            if (!_enableForwarding)
+            if (!_enableForwarding || !request.RecursionDesired)
                 return Task.FromResult<DnsDatagram>(null);
 
             IPAddress remoteIP = remoteEP.Address;