diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index a4f2618..11590f2 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -34,6 +34,7 @@
 
 struct neigh_parms
 {
+	struct net *net;
 	struct net_device *dev;
 	struct neigh_parms *next;
 	int	(*neigh_setup)(struct neighbour *);
@@ -126,7 +127,8 @@
 struct pneigh_entry
 {
 	struct pneigh_entry	*next;
-	struct net_device		*dev;
+	struct net		*net;
+	struct net_device	*dev;
 	u8			flags;
 	u8			key[0];
 };
@@ -187,6 +189,7 @@
 					     const void *pkey,
 					     struct net_device *dev);
 extern struct neighbour *	neigh_lookup_nodev(struct neigh_table *tbl,
+						   struct net *net,
 						   const void *pkey);
 extern struct neighbour *	neigh_create(struct neigh_table *tbl,
 					     const void *pkey,
@@ -211,8 +214,8 @@
 
 extern void			pneigh_enqueue(struct neigh_table *tbl, struct neigh_parms *p,
 					       struct sk_buff *skb);
-extern struct pneigh_entry	*pneigh_lookup(struct neigh_table *tbl, const void *key, struct net_device *dev, int creat);
-extern int			pneigh_delete(struct neigh_table *tbl, const void *key, struct net_device *dev);
+extern struct pneigh_entry	*pneigh_lookup(struct neigh_table *tbl, struct net *net, const void *key, struct net_device *dev, int creat);
+extern int			pneigh_delete(struct neigh_table *tbl, struct net *net, const void *key, struct net_device *dev);
 
 extern void neigh_app_ns(struct neighbour *n);
 extern void neigh_for_each(struct neigh_table *tbl, void (*cb)(struct neighbour *, void *), void *cookie);
@@ -220,6 +223,7 @@
 extern void pneigh_for_each(struct neigh_table *tbl, void (*cb)(struct pneigh_entry *));
 
 struct neigh_seq_state {
+	struct net *net;
 	struct neigh_table *tbl;
 	void *(*neigh_sub_iter)(struct neigh_seq_state *state,
 				struct neighbour *n, loff_t *pos);
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 741742f..47fbdc0 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -949,6 +949,11 @@
 
 	seq = file->private_data;
 	seq->private = state;
+	state->ns.net = get_proc_net(inode);
+	if (!state->ns.net) {
+		seq_release_private(inode, file);
+		rc = -ENXIO;
+	}
 out:
 	return rc;
 
@@ -957,11 +962,19 @@
 	goto out;
 }
 
+static int arp_seq_release(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq = file->private_data;
+	struct clip_seq_state *state = seq->private;
+	put_net(state->ns.net);
+	return seq_release_private(inode, file);
+}
+
 static const struct file_operations arp_seq_fops = {
 	.open		= arp_seq_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
-	.release	= seq_release_private,
+	.release	= arp_seq_release,
 	.owner		= THIS_MODULE
 };
 #endif
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 9a283fc..bd899d5 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -375,7 +375,8 @@
 	return n;
 }
 
-struct neighbour *neigh_lookup_nodev(struct neigh_table *tbl, const void *pkey)
+struct neighbour *neigh_lookup_nodev(struct neigh_table *tbl, struct net *net,
+				     const void *pkey)
 {
 	struct neighbour *n;
 	int key_len = tbl->key_len;
@@ -385,7 +386,8 @@
 
 	read_lock_bh(&tbl->lock);
 	for (n = tbl->hash_buckets[hash_val & tbl->hash_mask]; n; n = n->next) {
-		if (!memcmp(n->primary_key, pkey, key_len)) {
+		if (!memcmp(n->primary_key, pkey, key_len) &&
+		    (net == n->dev->nd_net)) {
 			neigh_hold(n);
 			NEIGH_CACHE_STAT_INC(tbl, hits);
 			break;
@@ -463,7 +465,8 @@
 	goto out;
 }
 
-struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl, const void *pkey,
+struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
+				    struct net *net, const void *pkey,
 				    struct net_device *dev, int creat)
 {
 	struct pneigh_entry *n;
@@ -479,6 +482,7 @@
 
 	for (n = tbl->phash_buckets[hash_val]; n; n = n->next) {
 		if (!memcmp(n->key, pkey, key_len) &&
+		    (n->net == net) &&
 		    (n->dev == dev || !n->dev)) {
 			read_unlock_bh(&tbl->lock);
 			goto out;
@@ -495,6 +499,7 @@
 	if (!n)
 		goto out;
 
+	n->net = hold_net(net);
 	memcpy(n->key, pkey, key_len);
 	n->dev = dev;
 	if (dev)
@@ -517,7 +522,7 @@
 }
 
 
-int pneigh_delete(struct neigh_table *tbl, const void *pkey,
+int pneigh_delete(struct neigh_table *tbl, struct net *net, const void *pkey,
 		  struct net_device *dev)
 {
 	struct pneigh_entry *n, **np;
@@ -532,13 +537,15 @@
 	write_lock_bh(&tbl->lock);
 	for (np = &tbl->phash_buckets[hash_val]; (n = *np) != NULL;
 	     np = &n->next) {
-		if (!memcmp(n->key, pkey, key_len) && n->dev == dev) {
+		if (!memcmp(n->key, pkey, key_len) && n->dev == dev &&
+		    (n->net == net)) {
 			*np = n->next;
 			write_unlock_bh(&tbl->lock);
 			if (tbl->pdestructor)
 				tbl->pdestructor(n);
 			if (n->dev)
 				dev_put(n->dev);
+			release_net(n->net);
 			kfree(n);
 			return 0;
 		}
@@ -561,6 +568,7 @@
 					tbl->pdestructor(n);
 				if (n->dev)
 					dev_put(n->dev);
+				release_net(n->net);
 				kfree(n);
 				continue;
 			}
@@ -1261,12 +1269,37 @@
 	spin_unlock(&tbl->proxy_queue.lock);
 }
 
+static inline struct neigh_parms *lookup_neigh_params(struct neigh_table *tbl,
+						      struct net *net, int ifindex)
+{
+	struct neigh_parms *p;
+
+	for (p = &tbl->parms; p; p = p->next) {
+		if (p->net != net)
+			continue;
+		if ((p->dev && p->dev->ifindex == ifindex) ||
+		    (!p->dev && !ifindex))
+			return p;
+	}
+
+	return NULL;
+}
 
 struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
 				      struct neigh_table *tbl)
 {
-	struct neigh_parms *p = kmemdup(&tbl->parms, sizeof(*p), GFP_KERNEL);
+	struct neigh_parms *p, *ref;
+	struct net *net;
 
+	net = &init_net;
+	if (dev)
+		net = dev->nd_net;
+
+	ref = lookup_neigh_params(tbl, net, 0);
+	if (!ref)
+		return NULL;
+
+	p = kmemdup(ref, sizeof(*p), GFP_KERNEL);
 	if (p) {
 		p->tbl		  = tbl;
 		atomic_set(&p->refcnt, 1);
@@ -1282,6 +1315,7 @@
 			dev_hold(dev);
 			p->dev = dev;
 		}
+		p->net = hold_net(net);
 		p->sysctl_table = NULL;
 		write_lock_bh(&tbl->lock);
 		p->next		= tbl->parms.next;
@@ -1323,6 +1357,7 @@
 
 void neigh_parms_destroy(struct neigh_parms *parms)
 {
+	release_net(parms->net);
 	kfree(parms);
 }
 
@@ -1333,6 +1368,7 @@
 	unsigned long now = jiffies;
 	unsigned long phsize;
 
+	tbl->parms.net = &init_net;
 	atomic_set(&tbl->parms.refcnt, 1);
 	INIT_RCU_HEAD(&tbl->parms.rcu_head);
 	tbl->parms.reachable_time =
@@ -1446,9 +1482,6 @@
 	struct net_device *dev = NULL;
 	int err = -EINVAL;
 
-	if (net != &init_net)
-		return -EINVAL;
-
 	if (nlmsg_len(nlh) < sizeof(*ndm))
 		goto out;
 
@@ -1477,7 +1510,7 @@
 			goto out_dev_put;
 
 		if (ndm->ndm_flags & NTF_PROXY) {
-			err = pneigh_delete(tbl, nla_data(dst_attr), dev);
+			err = pneigh_delete(tbl, net, nla_data(dst_attr), dev);
 			goto out_dev_put;
 		}
 
@@ -1515,9 +1548,6 @@
 	struct net_device *dev = NULL;
 	int err;
 
-	if (net != &init_net)
-		return -EINVAL;
-
 	err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
 	if (err < 0)
 		goto out;
@@ -1557,7 +1587,7 @@
 			struct pneigh_entry *pn;
 
 			err = -ENOBUFS;
-			pn = pneigh_lookup(tbl, dst, dev, 1);
+			pn = pneigh_lookup(tbl, net, dst, dev, 1);
 			if (pn) {
 				pn->flags = ndm->ndm_flags;
 				err = 0;
@@ -1752,19 +1782,6 @@
 	return -EMSGSIZE;
 }
 
-static inline struct neigh_parms *lookup_neigh_params(struct neigh_table *tbl,
-						      int ifindex)
-{
-	struct neigh_parms *p;
-
-	for (p = &tbl->parms; p; p = p->next)
-		if ((p->dev && p->dev->ifindex == ifindex) ||
-		    (!p->dev && !ifindex))
-			return p;
-
-	return NULL;
-}
-
 static const struct nla_policy nl_neightbl_policy[NDTA_MAX+1] = {
 	[NDTA_NAME]		= { .type = NLA_STRING },
 	[NDTA_THRESH1]		= { .type = NLA_U32 },
@@ -1798,9 +1815,6 @@
 	struct nlattr *tb[NDTA_MAX+1];
 	int err;
 
-	if (net != &init_net)
-		return -EINVAL;
-
 	err = nlmsg_parse(nlh, sizeof(*ndtmsg), tb, NDTA_MAX,
 			  nl_neightbl_policy);
 	if (err < 0)
@@ -1845,7 +1859,7 @@
 		if (tbp[NDTPA_IFINDEX])
 			ifindex = nla_get_u32(tbp[NDTPA_IFINDEX]);
 
-		p = lookup_neigh_params(tbl, ifindex);
+		p = lookup_neigh_params(tbl, net, ifindex);
 		if (p == NULL) {
 			err = -ENOENT;
 			goto errout_tbl_lock;
@@ -1926,9 +1940,6 @@
 	int neigh_skip = cb->args[1];
 	struct neigh_table *tbl;
 
-	if (net != &init_net)
-		return 0;
-
 	family = ((struct rtgenmsg *) nlmsg_data(cb->nlh))->rtgen_family;
 
 	read_lock(&neigh_tbl_lock);
@@ -1943,8 +1954,11 @@
 				       NLM_F_MULTI) <= 0)
 			break;
 
-		for (nidx = 0, p = tbl->parms.next; p; p = p->next, nidx++) {
-			if (nidx < neigh_skip)
+		for (nidx = 0, p = tbl->parms.next; p; p = p->next) {
+			if (net != p->net)
+				continue;
+
+			if (nidx++ < neigh_skip)
 				continue;
 
 			if (neightbl_fill_param_info(skb, tbl, p,
@@ -2020,6 +2034,7 @@
 static int neigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb,
 			    struct netlink_callback *cb)
 {
+	struct net * net = skb->sk->sk_net;
 	struct neighbour *n;
 	int rc, h, s_h = cb->args[1];
 	int idx, s_idx = idx = cb->args[2];
@@ -2030,8 +2045,12 @@
 			continue;
 		if (h > s_h)
 			s_idx = 0;
-		for (n = tbl->hash_buckets[h], idx = 0; n; n = n->next, idx++) {
-			if (idx < s_idx)
+		for (n = tbl->hash_buckets[h], idx = 0; n; n = n->next) {
+			int lidx;
+			if (n->dev->nd_net != net)
+				continue;
+			lidx = idx++;
+			if (lidx < s_idx)
 				continue;
 			if (neigh_fill_info(skb, n, NETLINK_CB(cb->skb).pid,
 					    cb->nlh->nlmsg_seq,
@@ -2053,13 +2072,9 @@
 
 static int neigh_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
 {
-	struct net *net = skb->sk->sk_net;
 	struct neigh_table *tbl;
 	int t, family, s_t;
 
-	if (net != &init_net)
-		return 0;
-
 	read_lock(&neigh_tbl_lock);
 	family = ((struct rtgenmsg *) nlmsg_data(cb->nlh))->rtgen_family;
 	s_t = cb->args[0];
@@ -2127,6 +2142,7 @@
 static struct neighbour *neigh_get_first(struct seq_file *seq)
 {
 	struct neigh_seq_state *state = seq->private;
+	struct net *net = state->net;
 	struct neigh_table *tbl = state->tbl;
 	struct neighbour *n = NULL;
 	int bucket = state->bucket;
@@ -2136,6 +2152,8 @@
 		n = tbl->hash_buckets[bucket];
 
 		while (n) {
+			if (n->dev->nd_net != net)
+				goto next;
 			if (state->neigh_sub_iter) {
 				loff_t fakep = 0;
 				void *v;
@@ -2165,6 +2183,7 @@
 					loff_t *pos)
 {
 	struct neigh_seq_state *state = seq->private;
+	struct net *net = state->net;
 	struct neigh_table *tbl = state->tbl;
 
 	if (state->neigh_sub_iter) {
@@ -2176,6 +2195,8 @@
 
 	while (1) {
 		while (n) {
+			if (n->dev->nd_net != net)
+				goto next;
 			if (state->neigh_sub_iter) {
 				void *v = state->neigh_sub_iter(state, n, pos);
 				if (v)
@@ -2222,6 +2243,7 @@
 static struct pneigh_entry *pneigh_get_first(struct seq_file *seq)
 {
 	struct neigh_seq_state *state = seq->private;
+	struct net * net = state->net;
 	struct neigh_table *tbl = state->tbl;
 	struct pneigh_entry *pn = NULL;
 	int bucket = state->bucket;
@@ -2229,6 +2251,8 @@
 	state->flags |= NEIGH_SEQ_IS_PNEIGH;
 	for (bucket = 0; bucket <= PNEIGH_HASHMASK; bucket++) {
 		pn = tbl->phash_buckets[bucket];
+		while (pn && (pn->net != net))
+			pn = pn->next;
 		if (pn)
 			break;
 	}
@@ -2242,6 +2266,7 @@
 					    loff_t *pos)
 {
 	struct neigh_seq_state *state = seq->private;
+	struct net * net = state->net;
 	struct neigh_table *tbl = state->tbl;
 
 	pn = pn->next;
@@ -2249,6 +2274,8 @@
 		if (++state->bucket > PNEIGH_HASHMASK)
 			break;
 		pn = tbl->phash_buckets[state->bucket];
+		while (pn && (pn->net != net))
+			pn = pn->next;
 		if (pn)
 			break;
 	}
@@ -2450,6 +2477,7 @@
 
 static void __neigh_notify(struct neighbour *n, int type, int flags)
 {
+	struct net *net = n->dev->nd_net;
 	struct sk_buff *skb;
 	int err = -ENOBUFS;
 
@@ -2464,10 +2492,10 @@
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, &init_net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
+	err = rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
 errout:
 	if (err < 0)
-		rtnl_set_sk_err(&init_net, RTNLGRP_NEIGH, err);
+		rtnl_set_sk_err(net, RTNLGRP_NEIGH, err);
 }
 
 #ifdef CONFIG_ARPD
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index e851b14..1ca13b1 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -580,8 +580,8 @@
 
 static int dn_neigh_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open_private(file, &dn_neigh_seq_ops,
-			sizeof(struct neigh_seq_state));
+	return seq_open_net(inode, file, &dn_neigh_seq_ops,
+			    sizeof(struct neigh_seq_state));
 }
 
 static const struct file_operations dn_neigh_seq_fops = {
@@ -589,7 +589,7 @@
 	.open		= dn_neigh_seq_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
-	.release	= seq_release_private,
+	.release	= seq_release_net,
 };
 
 #endif
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 1ae5efc..938ba7d 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -984,7 +984,7 @@
 		 * here
 		 */
 		if (!try_hard) {
-			neigh = neigh_lookup_nodev(&dn_neigh_table, &fl.fld_dst);
+			neigh = neigh_lookup_nodev(&dn_neigh_table, &init_net, &fl.fld_dst);
 			if (neigh) {
 				if ((oldflp->oif &&
 				    (neigh->dev->ifindex != oldflp->oif)) ||
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index fdf12d1..9eb6d3a 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -837,7 +837,7 @@
 		} else if (IN_DEV_FORWARD(in_dev)) {
 			if ((rt->rt_flags&RTCF_DNAT) ||
 			    (addr_type == RTN_UNICAST  && rt->u.dst.dev != dev &&
-			     (arp_fwd_proxy(in_dev, rt) || pneigh_lookup(&arp_tbl, &tip, dev, 0)))) {
+			     (arp_fwd_proxy(in_dev, rt) || pneigh_lookup(&arp_tbl, &init_net, &tip, dev, 0)))) {
 				n = neigh_event_ns(&arp_tbl, sha, &sip, dev);
 				if (n)
 					neigh_release(n);
@@ -980,7 +980,7 @@
 			return -ENODEV;
 	}
 	if (mask) {
-		if (pneigh_lookup(&arp_tbl, &ip, dev, 1) == NULL)
+		if (pneigh_lookup(&arp_tbl, &init_net, &ip, dev, 1) == NULL)
 			return -ENOBUFS;
 		return 0;
 	}
@@ -1089,7 +1089,7 @@
 	__be32 mask = ((struct sockaddr_in *)&r->arp_netmask)->sin_addr.s_addr;
 
 	if (mask == htonl(0xFFFFFFFF))
-		return pneigh_delete(&arp_tbl, &ip, dev);
+		return pneigh_delete(&arp_tbl, &init_net, &ip, dev);
 
 	if (mask)
 		return -EINVAL;
@@ -1375,8 +1375,8 @@
 
 static int arp_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open_private(file, &arp_seq_ops,
-			sizeof(struct neigh_seq_state));
+	return seq_open_net(inode, file, &arp_seq_ops,
+			    sizeof(struct neigh_seq_state));
 }
 
 static const struct file_operations arp_seq_fops = {
@@ -1384,7 +1384,7 @@
 	.open           = arp_seq_open,
 	.read           = seq_read,
 	.llseek         = seq_lseek,
-	.release	= seq_release_private,
+	.release	= seq_release_net,
 };
 
 static int __init arp_proc_init(void)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 4686646..ba7c8aa 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -449,7 +449,7 @@
 
 	/* XXX: idev->cnf.proxy_ndp? */
 	if (ipv6_devconf.proxy_ndp &&
-	    pneigh_lookup(&nd_tbl, &hdr->daddr, skb->dev, 0)) {
+	    pneigh_lookup(&nd_tbl, &init_net, &hdr->daddr, skb->dev, 0)) {
 		int proxied = ip6_forward_proxy_check(skb);
 		if (proxied > 0)
 			return ip6_input(skb);
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index b87f9d2..b66a1f8 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -789,7 +789,7 @@
 		if (ipv6_chk_acast_addr(dev, &msg->target) ||
 		    (idev->cnf.forwarding &&
 		     (ipv6_devconf.proxy_ndp || idev->cnf.proxy_ndp) &&
-		     (pneigh = pneigh_lookup(&nd_tbl,
+		     (pneigh = pneigh_lookup(&nd_tbl, &init_net,
 					     &msg->target, dev, 0)) != NULL)) {
 			if (!(NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED) &&
 			    skb->pkt_type != PACKET_HOST &&
@@ -930,7 +930,7 @@
 		 */
 		if (lladdr && !memcmp(lladdr, dev->dev_addr, dev->addr_len) &&
 		    ipv6_devconf.forwarding && ipv6_devconf.proxy_ndp &&
-		    pneigh_lookup(&nd_tbl, &msg->target, dev, 0)) {
+		    pneigh_lookup(&nd_tbl, &init_net, &msg->target, dev, 0)) {
 			/* XXX: idev->cnf.prixy_ndp */
 			goto out;
 		}