--- zzzz-none-000/linux-2.6.32.61/net/ipv4/Kconfig	2013-06-10 09:43:48.000000000 +0000
+++ virian-300e-630/linux-2.6.32.61/net/ipv4/Kconfig	2011-07-20 07:23:51.000000000 +0000
@@ -627,3 +627,10 @@
 
 	  If unsure, say N.
 
+config IP_MULTICAST_FASTFORWARD
+	tristate "IP: fast multicasting forwarding (AVM)"
+	depends on IP_MULTICAST
+	help
+	  This code is for fast forwarding of UDP multicast streams.
+
+source "net/ipv4/Kconfig.ifx"