Index: /trunk/src/VBox/Devices/Network/DevVirtioNet.cpp
===================================================================
--- /trunk/src/VBox/Devices/Network/DevVirtioNet.cpp	(revision 46575)
+++ /trunk/src/VBox/Devices/Network/DevVirtioNet.cpp	(revision 46576)
@@ -386,5 +386,5 @@
         | VNET_F_HOST_TSO4
         | VNET_F_HOST_TSO6
-        | VNET_F_HOST_UFO
+/*        | VNET_F_HOST_UFO   -- Disabled temporarely (see @bugref{6821}) */
         | VNET_F_GUEST_CSUM   /* We expect the guest to accept partial TCP checksums (see @bugref{4796}) */
         | VNET_F_GUEST_TSO4