Index: /trunk/src/VBox/NetworkServices/NAT/VBoxNetLwipNAT.cpp
===================================================================
--- /trunk/src/VBox/NetworkServices/NAT/VBoxNetLwipNAT.cpp	(revision 48241)
+++ /trunk/src/VBox/NetworkServices/NAT/VBoxNetLwipNAT.cpp	(revision 48242)
@@ -709,6 +709,6 @@
     m_src6.sin6_family = AF_INET6;
 #if HAVE_SA_LEN
-    m_src4.sa_len = sizeof(m_src4);
-    m_src6.sa_len = sizeof(m_src6);
+    m_src4.sin_len = sizeof(m_src4);
+    m_src6.sin6_len = sizeof(m_src6);
 #endif