diff -Naur kernel-ml-3.9.9-orig/linux-3.9.9-2.ocf.nopl.vendorconf.el6.i686/net/ipv4/protocol.c kernel-ml-3.9.9/linux-3.9.9-2.ocf.nopl.vendorconf.el6.i686/net/ipv4/protocol.c
--- kernel-ml-3.9.9-orig/linux-3.9.9-2.ocf.nopl.vendorconf.el6.i686/net/ipv4/protocol.c	2013-07-03 13:56:36.000000000 -0400
+++ kernel-ml-3.9.9/linux-3.9.9-2.ocf.nopl.vendorconf.el6.i686/net/ipv4/protocol.c	2013-08-27 15:11:39.166999971 -0400
@@ -37,11 +37,13 @@
 
 int inet_add_protocol(const struct net_protocol *prot, unsigned char protocol)
 {
+#ifdef CONFIG_NAMESPACES
 	if (!prot->netns_ok) {
 		pr_err("Protocol %u is not namespace aware, cannot register.\n",
 			protocol);
 		return -EINVAL;
 	}
+#endif
 
 	return !cmpxchg((const struct net_protocol **)&inet_protos[protocol],
 			NULL, prot) ? 0 : -1;