diff -NurpP linux-2.6.22.16-vs2.3.0.32/include/linux/vserver/network.h linux-2.6.22.16-vs2.3.0.32.1/include/linux/vserver/network.h
--- linux-2.6.22.16-vs2.3.0.32/include/linux/vserver/network.h	2007-10-05 12:29:05 +0200
+++ linux-2.6.22.16-vs2.3.0.32.1/include/linux/vserver/network.h	2008-02-07 15:35:05 +0100
@@ -13,6 +13,7 @@
 
 #define NXF_SINGLE_IP		0x00000100
 #define NXF_LBACK_REMAP		0x00000200
+#define NXF_LBACK_ALLOW		0x00000400
 
 #define NXF_HIDE_NETIF		0x02000000
 #define NXF_HIDE_LBACK		0x04000000
diff -NurpP linux-2.6.22.16-vs2.3.0.32/kernel/vserver/inet.c linux-2.6.22.16-vs2.3.0.32.1/kernel/vserver/inet.c
--- linux-2.6.22.16-vs2.3.0.32/kernel/vserver/inet.c	2007-10-10 23:55:30 +0200
+++ linux-2.6.22.16-vs2.3.0.32.1/kernel/vserver/inet.c	2008-02-07 15:34:29 +0100
@@ -212,7 +212,8 @@ int ip_v4_find_src(struct nx_info *nxi, 
 			fl->fl4_dst = nxi->v4_lback.s_addr;
 		if (LOOPBACK(fl->fl4_src))
 			fl->fl4_src = nxi->v4_lback.s_addr;
-	} else if (LOOPBACK(fl->fl4_dst))
+	} else if (LOOPBACK(fl->fl4_dst) &&
+		!nx_info_flags(nxi, NXF_LBACK_ALLOW, 0))
 		return -EPERM;
 
 	return 0;