Changeset 38936 in vbox for trunk/src/VBox

Timestamp:

Oct 5, 2011 6:31:08 AM (13 years ago)

Author:

vboxsync

Message:

IntNet: Update MAC dst addr before comparing it to host's addr (#5905).

File:

• trunk/src/VBox/Devices/Network/SrvIntNetR0.cpp (modified) (1 diff)

trunk/src/VBox/Devices/Network/SrvIntNetR0.cpp

@@ -1472 +1472 @@
                 pDstTab->aIfs[iIfDst].pIf            = pIf;
                 pDstTab->aIfs[iIfDst].fReplaceDstMac = fExact;
+                /*
+                 * We need to compare an updated destination address against host's address.
+                 * If we compare the address extracted from the packet it will match host's MAC
+                 * and will be passed up the stack which will cause duplicates if IP forwarding
+                 * is enabled on the host (see #5905).
+                 */
+                if (fExact)
+                    pDstMacAddr = &pIf->MacAddr;
                 intnetR0BusyIncIf(pIf);
             }