diff --git a/sysdep/cf/linux-20.h b/sysdep/cf/linux-20.h
index 092ab71f..8c06c763 100644
--- a/sysdep/cf/linux-20.h
+++ b/sysdep/cf/linux-20.h
@@ -9,6 +9,8 @@
 #undef CONFIG_TOS
 #undef CONFIG_MULTIPATH
 #undef CONFIG_NETLINK
+#undef CONFIG_AUTO_ROUTES
+#define CONFIG_ALL_MULTICAST
 
 /*
 Link: sysdep/linux
diff --git a/sysdep/cf/linux-21.h b/sysdep/cf/linux-21.h
index c810ec1a..4883abda 100644
--- a/sysdep/cf/linux-21.h
+++ b/sysdep/cf/linux-21.h
@@ -9,6 +9,8 @@
 #define CONFIG_TOS
 #define CONFIG_MULTIPATH
 #define CONFIG_NETLINK
+#define CONFIG_AUTO_ROUTES
+#define CONFIG_ALL_MULTICAST
 
 /*
 Link: sysdep/linux
diff --git a/sysdep/cf/linux-v6.h b/sysdep/cf/linux-v6.h
index 21939b86..d4611e6d 100644
--- a/sysdep/cf/linux-v6.h
+++ b/sysdep/cf/linux-v6.h
@@ -11,6 +11,8 @@
 #define CONFIG_TOS
 #define CONFIG_MULTIPATH
 #define CONFIG_NETLINK
+#define CONFIG_AUTO_ROUTES
+#define CONFIG_ALL_MULTICAST
 
 /*
 Link: sysdep/linux