Index: /trunk/src/VBox/NetworkServices/NAT/VBoxNetLwipNAT.cpp
===================================================================
--- /trunk/src/VBox/NetworkServices/NAT/VBoxNetLwipNAT.cpp	(revision 49559)
+++ /trunk/src/VBox/NetworkServices/NAT/VBoxNetLwipNAT.cpp	(revision 49560)
@@ -167,5 +167,5 @@
     virtual int parseOpt(int rc, const RTGETOPTUNION& getOptVal);
     /* VBoxNetNAT always needs Main */
-    virtual bool        isMainNeeded() { return true; }
+    virtual bool isMainNeeded() const { return true; }
    private:
     struct proxy_options m_ProxyOptions;
Index: /trunk/src/VBox/NetworkServices/NetLib/VBoxNetBaseService.h
===================================================================
--- /trunk/src/VBox/NetworkServices/NetLib/VBoxNetBaseService.h	(revision 49559)
+++ /trunk/src/VBox/NetworkServices/NetLib/VBoxNetBaseService.h	(revision 49560)
@@ -39,5 +39,5 @@
 
     virtual int         init(void);
-    virtual bool        isMainNeeded() { return m_fNeedMain; }
+    virtual bool        isMainNeeded() const { return m_fNeedMain; }
     /* VirtualBox instance */
     ComPtr<IVirtualBox> virtualbox;