diff --git a/src/NetworkProtocol.cs b/src/NetworkProtocol.cs
index 15a9f95e..87ad621a 100644
--- a/src/NetworkProtocol.cs
+++ b/src/NetworkProtocol.cs
@@ -53,6 +53,7 @@ static NetworkProtocol()
             NetworkProtocol.Register<DnsAddrNetworkProtocol>();
             NetworkProtocol.Register<WssNetworkProtocol>();
             NetworkProtocol.Register<IpcidrNetworkProtocol>();
+            NetworkProtocol.Register<WebRtcDirectNetworkProtocol>();
         }
 
         /// <summary>
@@ -434,6 +435,12 @@ internal class QuicV1NetworkProtocol : ValuelessNetworkProtocol
         public override uint Code => 465;
     }
 
+    internal class WebRtcDirectNetworkProtocol : ValuelessNetworkProtocol
+    {
+        public override string Name => "webrtc-direct";
+        public override uint Code => 280;
+    }
+
     internal class WebTransportNetworkProtocol : ValuelessNetworkProtocol
     {
         public override string Name => "webtransport";