diff -Nurb linux-2.6.22-593/net/core/net-sysfs.c linux-2.6.22-594/net/core/net-sysfs.c
--- linux-2.6.22-593/net/core/net-sysfs.c	2008-02-29 09:01:43.000000000 -0500
+++ linux-2.6.22-594/net/core/net-sysfs.c	2008-02-29 09:20:20.000000000 -0500
@@ -190,6 +190,41 @@
 	return netdev_store(device, attr, buf, len, change_mtu);
 }
 
+static ssize_t show_new_ns_pid(struct device *cd, struct device_attribute *attr, char *buf)
+{
+	return -EPERM;
+}
+
+static int change_new_ns_pid(struct net_device *dev, unsigned long new_ns_pid)
+{
+	struct task_struct *tsk;
+	int err;
+	struct net *net=NULL;
+	/* Look up the network namespace */
+	err = -ESRCH;
+	rcu_read_lock();
+	tsk = find_task_by_pid(new_ns_pid);
+	if (tsk) {
+		task_lock(tsk);
+		if (tsk->nsproxy) {
+			err = 0;
+			net = get_net(tsk->nsproxy->net_ns);
+		}
+		task_unlock(tsk);
+	}
+	rcu_read_unlock();
+	/* If I found a network namespace move the device */
+	if (!err) {
+		err = dev_change_net_namespace(dev, net, NULL);
+		put_net(net);
+	}
+	return err;
+}
+static ssize_t store_new_ns_pid(struct device *cd, struct device_attribute *attr, const char *buf, size_t len)
+{
+	return netdev_store(cd, attr, buf, len, change_new_ns_pid);
+}
+
 NETDEVICE_SHOW(flags, fmt_hex);
 
 static int change_flags(struct net_device *dev, unsigned long new_flags)
@@ -249,6 +284,7 @@
 	__ATTR(tx_queue_len, S_IRUGO | S_IWUSR, show_tx_queue_len,
 	       store_tx_queue_len),
 	__ATTR(weight, S_IRUGO | S_IWUSR, show_weight, store_weight),
+	__ATTR(new_ns_pid, S_IWUSR, show_new_ns_pid, store_new_ns_pid),
 	{}
 };