diff --git a/kernel/net/netfilter/ipset/Kbuild b/kernel/net/netfilter/ipset/Kbuild
index c205ab9..6174c86 100644
--- a/kernel/net/netfilter/ipset/Kbuild
+++ b/kernel/net/netfilter/ipset/Kbuild
@@ -7,6 +7,7 @@ obj-m += ip_set_bitmap_ip.o ip_set_bitmap_ipmac.o ip_set_bitmap_port.o
 obj-m += ip_set_hash_ip.o ip_set_hash_ipport.o ip_set_hash_ipportip.o
 obj-m += ip_set_hash_ipportnet.o
 obj-m += ip_set_hash_net.o ip_set_hash_netport.o ip_set_hash_netiface.o
+obj-m += ip_set_hash_netnet.o
 obj-m += ip_set_list_set.o
 
 # It's for me...
diff --git a/kernel/net/netfilter/ipset/Kconfig b/kernel/net/netfilter/ipset/Kconfig
index ba36c28..46d5873 100644
--- a/kernel/net/netfilter/ipset/Kconfig
+++ b/kernel/net/netfilter/ipset/Kconfig
@@ -99,6 +99,15 @@ config IP_SET_HASH_NET
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+config IP_SET_HASH_NETNET
+	tristate "hash:net,net set support"
+	depends on IP_SET
+	help
+	  This option adds the hash:net,net  set type support, by which
+	  one can store IPv4/IPv6 network address/prefix pairs in a set.
+
+	  To compile it as a module, choose M here.  If unsure, say N.
+
 config IP_SET_HASH_NETPORT
 	tristate "hash:net,port set support"
 	depends on IP_SET
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_gen.h b/kernel/net/netfilter/ipset/ip_set_hash_gen.h
index c694079..906c778 100644
--- a/kernel/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/kernel/net/netfilter/ipset/ip_set_hash_gen.h
@@ -80,7 +80,13 @@ struct htable {
 /* Book-keeping of the prefixes added to the set */
 struct net_prefixes {
 	u8 cidr;		/* the different cidr values in the set */
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+	u8 cidr2;
+#endif
 	u32 nets;		/* number of elements per cidr */
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+	u32 nets2;		/* number of elements per secondary cidr */
+#endif
 };
 
 /* Compute the hash table size */
@@ -187,6 +193,7 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #undef mtype_data_equal
 #undef mtype_do_data_match
 #undef mtype_data_set_flags
+#undef mtype_data_reset_elem
 #undef mtype_data_reset_flags
 #undef mtype_data_netmask
 #undef mtype_data_list
@@ -226,6 +233,9 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #define mtype_do_data_match(d)	1
 #endif
 #define mtype_data_set_flags	IPSET_TOKEN(MTYPE, _data_set_flags)
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+#define mtype_data_reset_elem	IPSET_TOKEN(MTYPE, _data_reset_elem)
+#endif
 #define mtype_data_reset_flags	IPSET_TOKEN(MTYPE, _data_reset_flags)
 #define mtype_data_netmask	IPSET_TOKEN(MTYPE, _data_netmask)
 #define mtype_data_list		IPSET_TOKEN(MTYPE, _data_list)
@@ -233,6 +243,10 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #define mtype_elem		IPSET_TOKEN(MTYPE, _elem)
 #define mtype_add_cidr		IPSET_TOKEN(MTYPE, _add_cidr)
 #define mtype_del_cidr		IPSET_TOKEN(MTYPE, _del_cidr)
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+#define mtype_add_cidr2		IPSET_TOKEN(MTYPE, _add_cidr2)
+#define mtype_del_cidr2		IPSET_TOKEN(MTYPE, _del_cidr2)
+#endif
 #define mtype_ahash_memsize	IPSET_TOKEN(MTYPE, _ahash_memsize)
 #define mtype_flush		IPSET_TOKEN(MTYPE, _flush)
 #define mtype_destroy		IPSET_TOKEN(MTYPE, _destroy)
@@ -338,6 +352,52 @@ mtype_del_cidr(struct htype *h, u8 cidr, u8 nets_length)
 		h->nets[j].nets = h->nets[j + 1].nets;
 	}
 }
+
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+static void
+mtype_add_cidr2(struct htype *h, u8 cidr, u8 nets_length)
+{
+	int i, j;
+
+	/* Add in increasing prefix order, so larger cidr first */
+	for (i = 0, j = -1; i < nets_length && h->nets[i].nets2; i++) {
+		if (j != -1)
+			continue;
+		else if (h->nets[i].cidr2 < cidr)
+			j = i;
+		else if (h->nets[i].cidr2 == cidr) {
+			h->nets[i].nets2++;
+			return;
+		}
+	}
+	if (j != -1) {
+		for (; i > j; i--) {
+			h->nets[i].cidr2 = h->nets[i - 1].cidr2;
+			h->nets[i].nets2 = h->nets[i - 1].nets2;
+		}
+	}
+	h->nets[i].cidr2 = cidr;
+	h->nets[i].nets2 = 1;
+}
+
+static void
+mtype_del_cidr2(struct htype *h, u8 cidr, u8 nets_length)
+{
+	u8 i, j;
+
+	for (i = 0; i < nets_length - 1 && h->nets[i].cidr2 != cidr; i++)
+		;
+	h->nets[i].nets2--;
+
+	if (h->nets[i].nets2 != 0)
+		return;
+
+	for (j = i; j < nets_length - 1 && h->nets[j].nets2; j++) {
+		h->nets[j].cidr2 = h->nets[j + 1].cidr2;
+		h->nets[j].nets2 = h->nets[j + 1].nets2;
+	}
+}
+#endif
 #endif
 
 /* Calculate the actual memory size of the set data */
@@ -456,6 +516,10 @@ mtype_expire(struct htype *h, u8 nets_length, size_t dsize)
 #ifdef IP_SET_HASH_WITH_NETS
 				mtype_del_cidr(h, CIDR(data->cidr),
 					       nets_length);
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+				mtype_del_cidr2(h, CIDR(data->cidr2),
+					        nets_length);
+#endif
 #endif
 				if (j != n->pos - 1)
 					/* Not last one */
@@ -642,7 +706,13 @@ reuse_slot:
 		data = ahash_data(n, j, h->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
 		mtype_del_cidr(h, CIDR(data->cidr), NETS_LENGTH(set->family));
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+		mtype_del_cidr2(h, CIDR(data->cidr2), NETS_LENGTH(set->family));
+#endif
 		mtype_add_cidr(h, CIDR(d->cidr), NETS_LENGTH(set->family));
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+		mtype_add_cidr2(h, CIDR(d->cidr2), NETS_LENGTH(set->family));
+#endif
 #endif
 	} else {
 		/* Use/create a new slot */
@@ -656,6 +726,9 @@ reuse_slot:
 		data = ahash_data(n, n->pos++, h->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
 		mtype_add_cidr(h, CIDR(d->cidr), NETS_LENGTH(set->family));
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+		mtype_add_cidr2(h, CIDR(d->cidr2), NETS_LENGTH(set->family));
+#endif
 #endif
 		h->elements++;
 	}
@@ -754,13 +827,24 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d,
 	struct htable *t = rcu_dereference_bh(h->table);
 	struct hbucket *n;
 	struct mtype_elem *data;
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+	struct mtype_elem orig = *d;
+	int i, j = 0, k;
+#else
 	int i, j = 0;
+#endif
 	u32 key, multi = 0;
 	u8 nets_length = NETS_LENGTH(set->family);
 
 	pr_debug("test by nets\n");
 	for (; j < nets_length && h->nets[j].nets && !multi; j++) {
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+		mtype_data_reset_elem(d, &orig);
+		for (k = 0; k < nets_length && h->nets[k].nets2 && !multi; k++) {
+			mtype_data_netmask(d, h->nets[j].cidr, h->nets[k].cidr2);
+#else
 		mtype_data_netmask(d, h->nets[j].cidr);
+#endif
 		key = HKEY(d, h->initval, t->htable_bits);
 		n = hbucket(t, key);
 		for (i = 0; i < n->pos; i++) {
@@ -780,6 +864,9 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d,
 				return mtype_data_match(data, ext,
 							mext, set, flags);
 		}
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+		}
+#endif
 	}
 	return 0;
 }
@@ -803,7 +890,11 @@ mtype_test(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 #ifdef IP_SET_HASH_WITH_NETS
 	/* If we test an IP address and not a network address,
 	 * try all possible network sizes */
+#ifdef IP_SET_HASH_WITH_TWO_NETS
+	if (CIDR(d->cidr) == SET_HOST_MASK(set->family) && CIDR(d->cidr2) == SET_HOST_MASK(set->family)) {
+#else
 	if (CIDR(d->cidr) == SET_HOST_MASK(set->family)) {
+#endif
 		ret = mtype_test_cidrs(set, d, ext, mext, flags);
 		goto out;
 	}
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_netnet.c b/kernel/net/netfilter/ipset/ip_set_hash_netnet.c
new file mode 100644
index 0000000..de8e634
--- /dev/null
+++ b/kernel/net/netfilter/ipset/ip_set_hash_netnet.c
@@ -0,0 +1,531 @@
+/* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ * Copyright (C) 2013 Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* Kernel module implementing an IP set type: the hash:net type */
+
+#include <linux/jhash.h>
+#include <linux/module.h>
+#include <linux/ip.h>
+#include <linux/skbuff.h>
+#include <linux/errno.h>
+#include <linux/random.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/netlink.h>
+
+#include <linux/netfilter.h>
+#include <linux/netfilter/ipset/pfxlen.h>
+#include <linux/netfilter/ipset/ip_set.h>
+#include <linux/netfilter/ipset/ip_set_hash.h>
+
+#define IPSET_TYPE_REV_MIN	0
+#define IPSET_TYPE_REV_MAX	0
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
+IP_SET_MODULE_DESC("hash:net,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
+MODULE_ALIAS("ip_set_hash:net,net");
+
+/* Type specific function prefix */
+#define HTYPE		hash_netnet
+#define IP_SET_HASH_WITH_NETS
+#define IP_SET_HASH_WITH_TWO_NETS
+
+/* IPv4 variants */
+
+/* Member elements  */
+struct hash_netnet4_elem {
+	__be32 ip;
+	__be32 ip2;
+	u8 padding0;
+	u8 nomatch;
+	u8 cidr;
+	u8 cidr2;
+};
+
+struct hash_netnet4t_elem {
+	__be32 ip;
+	__be32 ip2;
+	u8 padding0;
+	u8 nomatch;
+	u8 cidr;
+	u8 cidr2;
+	unsigned long timeout;
+};
+
+struct hash_netnet4c_elem {
+	__be32 ip;
+	__be32 ip2;
+	u8 padding0;
+	u8 nomatch;
+	u8 cidr;
+	u8 cidr2;
+	struct ip_set_counter counter;
+};
+
+struct hash_netnet4ct_elem {
+	__be32 ip;
+	__be32 ip2;
+	u8 nomatch;
+	u8 cidr;
+	u8 cidr2;
+	u8 padding0;
+	struct ip_set_counter counter;
+	unsigned long timeout;
+};
+
+/* Common functions */
+
+static inline bool
+hash_netnet4_data_equal(const struct hash_netnet4_elem *ip1,
+		     const struct hash_netnet4_elem *ip2,
+		     u32 *multi)
+{
+	return ip1->ip == ip2->ip &&
+	       ip1->ip2 == ip2->ip2 &&
+	       ip1->cidr == ip2->cidr &&
+	       ip2->cidr2 == ip2->cidr2;
+}
+
+static inline int
+hash_netnet4_do_data_match(const struct hash_netnet4_elem *elem)
+{
+	return elem->nomatch ? -ENOTEMPTY : 1;
+}
+
+static inline void
+hash_netnet4_data_set_flags(struct hash_netnet4_elem *elem, u32 flags)
+{
+	elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
+}
+
+static inline void
+hash_netnet4_data_reset_flags(struct hash_netnet4_elem *elem, u8 *flags)
+{
+	swap(*flags, elem->nomatch);
+}
+
+static inline void
+hash_netnet4_data_reset_elem(struct hash_netnet4_elem *elem, struct hash_netnet4_elem *orig)
+{
+	elem->ip2 = orig->ip2;
+}
+
+static inline void
+hash_netnet4_data_netmask(struct hash_netnet4_elem *elem, u8 cidr, u8 cidr2)
+{
+	elem->ip &= ip_set_netmask(cidr);
+	elem->ip2 &= ip_set_netmask(cidr2);
+	elem->cidr = cidr;
+	elem->cidr2 = cidr2;
+}
+
+static bool
+hash_netnet4_data_list(struct sk_buff *skb, const struct hash_netnet4_elem *data)
+{
+	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
+
+	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) ||
+	    nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr2) ||
+	    (flags &&
+	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return 1;
+}
+
+static inline void
+hash_netnet4_data_next(struct hash_netnet4_elem *next,
+		    const struct hash_netnet4_elem *d)
+{
+	next->ip = d->ip;
+	next->ip2 = d->ip2;
+}
+
+#define MTYPE		hash_netnet4
+#define PF		4
+#define HOST_MASK	32
+#include "ip_set_hash_gen.h"
+
+static int
+hash_netnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
+	       const struct xt_action_param *par,
+	       enum ipset_adt adt, struct ip_set_adt_opt *opt)
+{
+	const struct hash_netnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netnet4_elem e = {
+		.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK,
+		.cidr2 = h->nets[0].cidr2 ? h->nets[0].cidr2 : HOST_MASK
+	};
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+
+	if (adt == IPSET_TEST)
+		e.cidr = e.cidr2 = HOST_MASK;
+
+	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip);
+	ip4addrptr(skb, opt->flags & IPSET_DIM_TWO_SRC, &e.ip2);
+	e.ip &= ip_set_netmask(e.cidr);
+	e.ip2 &= ip_set_netmask(e.cidr2);
+
+	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
+}
+
+static int
+hash_netnet4_uadt(struct ip_set *set, struct nlattr *tb[],
+	       enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
+{
+	const struct hash_netnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netnet4_elem e = { .cidr = HOST_MASK, .cidr2 = HOST_MASK };
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	u32 ip = 0, ip_to = 0, last;
+	u32 ip2 = 0, ip2_from = 0, ip2_to = 0, last2;
+	u8 cidr, cidr2;
+	int ret;
+
+	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
+		return -IPSET_ERR_PROTOCOL;
+
+	if (tb[IPSET_ATTR_LINENO])
+		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
+
+	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
+	      ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from) ||
+	      ip_set_get_extensions(set, tb, &ext);
+	if (ret)
+		return ret;
+
+	if (tb[IPSET_ATTR_CIDR]) {
+		cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
+		if (!cidr || cidr > HOST_MASK)
+			return -IPSET_ERR_INVALID_CIDR;
+		e.cidr = cidr;
+	}
+
+	if(tb[IPSET_ATTR_CIDR2]) {
+		cidr2 = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
+		if (!cidr2 || cidr2 > HOST_MASK)
+			return -IPSET_ERR_INVALID_CIDR;
+		e.cidr2 = cidr2;
+	}
+
+	if (tb[IPSET_ATTR_CADT_FLAGS]) {
+		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+		if (cadt_flags & IPSET_FLAG_NOMATCH)
+			flags |= (IPSET_FLAG_NOMATCH << 16);
+	}
+
+	if (adt == IPSET_TEST || !(tb[IPSET_ATTR_IP_TO] && tb[IPSET_ATTR_IP2_TO])) {
+		e.ip = htonl(ip & ip_set_hostmask(e.cidr));
+		e.ip2 = htonl(ip2_from & ip_set_hostmask(e.cidr2));
+		ret = adtfn(set, &e, &ext, &ext, flags);
+		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
+		       ip_set_eexist(ret, flags) ? 0 : ret;
+	}
+
+	ip_to = ip;
+	if (tb[IPSET_ATTR_IP_TO]) {
+		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
+		if (ret)
+			return ret;
+		if (ip_to < ip)
+			swap(ip, ip_to);
+		if (ip + UINT_MAX == ip_to)
+			return -IPSET_ERR_HASH_RANGE;
+	}
+
+	ip2_to = ip2_from;
+	if (tb[IPSET_ATTR_IP2_TO]) {
+		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
+		if (ret)
+			return ret;
+		if (ip2_to < ip2_from)
+			swap(ip2_from, ip2_to);
+		if (ip2_from + UINT_MAX == ip2_to)
+			return -IPSET_ERR_HASH_RANGE;
+
+	}
+
+	if (retried)
+		ip = ntohl(h->next.ip);
+
+	while (!after(ip, ip_to)) {
+		e.ip = htonl(ip);
+		last = ip_set_range_to_cidr(ip, ip_to, &cidr);
+		e.cidr = cidr;
+		ip2 = retried && ip == ntohl(h->next.ip) ? ntohl(h->next.ip2)
+							 : ip2_from;
+		while(!after(ip2, ip2_to)) {
+			e.ip2 = htonl(ip2);
+			last2 = ip_set_range_to_cidr(ip2, ip2_to, &cidr2);
+			e.cidr2 = cidr2;
+			ret = adtfn(set, &e, &ext, &ext, flags);
+			if (ret && !ip_set_eexist(ret, flags))
+				return ret;
+			else
+				ret = 0;
+			ip2 = last2 + 1;
+		}
+		ip = last + 1;
+	}
+	return ret;
+}
+
+/* IPv6 variants */
+
+struct hash_netnet6_elem {
+	union nf_inet_addr ip;
+	union nf_inet_addr ip2;
+	u8 padding0;
+	u8 nomatch;
+	u8 cidr;
+	u8 cidr2;
+};
+
+struct hash_netnet6t_elem {
+	union nf_inet_addr ip;
+	union nf_inet_addr ip2;
+	u8 padding0;
+	u8 nomatch;
+	u8 cidr;
+	u8 cidr2;
+	unsigned long timeout;
+};
+
+struct hash_netnet6c_elem {
+	union nf_inet_addr ip;
+	union nf_inet_addr ip2;
+	u8 padding0;
+	u8 nomatch;
+	u8 cidr;
+	u8 cidr2;
+	struct ip_set_counter counter;
+};
+
+struct hash_netnet6ct_elem {
+	union nf_inet_addr ip;
+	union nf_inet_addr ip2;
+	u8 padding0;
+	u8 nomatch;
+	u8 cidr;
+	u8 cidr2;
+	struct ip_set_counter counter;
+	unsigned long timeout;
+};
+
+/* Common functions */
+
+static inline bool
+hash_netnet6_data_equal(const struct hash_netnet6_elem *ip1,
+		     const struct hash_netnet6_elem *ip2,
+		     u32 *multi)
+{
+	return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) &&
+	       ipv6_addr_equal(&ip1->ip2.in6, &ip2->ip2.in6) &&
+	       ip1->cidr == ip2->cidr &&
+	       ip1->cidr2 == ip2->cidr2;
+}
+
+static inline int
+hash_netnet6_do_data_match(const struct hash_netnet6_elem *elem)
+{
+	return elem->nomatch ? -ENOTEMPTY : 1;
+}
+
+static inline void
+hash_netnet6_data_set_flags(struct hash_netnet6_elem *elem, u32 flags)
+{
+	elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
+}
+
+static inline void
+hash_netnet6_data_reset_flags(struct hash_netnet6_elem *elem, u8 *flags)
+{
+	swap(*flags, elem->nomatch);
+}
+
+static inline void
+hash_netnet6_data_reset_elem(struct hash_netnet6_elem *elem, struct hash_netnet6_elem *orig)
+{
+	elem->ip2 = orig->ip2;
+}
+
+static inline void
+hash_netnet6_data_netmask(struct hash_netnet6_elem *elem, u8 cidr, u8 cidr2)
+{
+	ip6_netmask(&elem->ip, cidr);
+	ip6_netmask(&elem->ip2, cidr2);
+	elem->cidr = cidr;
+	elem->cidr2 = cidr2;
+}
+
+static bool
+hash_netnet6_data_list(struct sk_buff *skb, const struct hash_netnet6_elem *data)
+{
+	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
+
+	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) ||
+	    nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip2.in6) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr2) ||
+	    (flags &&
+	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return 1;
+}
+
+static inline void
+hash_netnet6_data_next(struct hash_netnet4_elem *next,
+		    const struct hash_netnet6_elem *d)
+{
+}
+
+#undef MTYPE
+#undef PF
+#undef HOST_MASK
+
+#define MTYPE		hash_netnet6
+#define PF		6
+#define HOST_MASK	128
+#define IP_SET_EMIT_CREATE
+#include "ip_set_hash_gen.h"
+
+static int
+hash_netnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
+	       const struct xt_action_param *par,
+	       enum ipset_adt adt, struct ip_set_adt_opt *opt)
+{
+	const struct hash_netnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netnet6_elem e = {
+		.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK,
+		.cidr2 = h->nets[0].cidr2 ? h->nets[0].cidr2 : HOST_MASK
+	};
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+
+	if (adt == IPSET_TEST)
+		e.cidr = e.cidr2 = HOST_MASK;
+
+	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
+	ip6addrptr(skb, opt->flags & IPSET_DIM_TWO_SRC, &e.ip2.in6);
+	ip6_netmask(&e.ip, e.cidr);
+	ip6_netmask(&e.ip2, e.cidr2);
+
+	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
+}
+
+static int
+hash_netnet6_uadt(struct ip_set *set, struct nlattr *tb[],
+	       enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
+{
+	const struct hash_netnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netnet6_elem e = { .cidr = HOST_MASK, .cidr2 = HOST_MASK };
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	int ret;
+
+	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
+		return -IPSET_ERR_PROTOCOL;
+	if (unlikely(tb[IPSET_ATTR_IP_TO]))
+		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
+
+	if (tb[IPSET_ATTR_LINENO])
+		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
+
+	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
+	      ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2) ||
+	      ip_set_get_extensions(set, tb, &ext);
+	if (ret)
+		return ret;
+
+	if (tb[IPSET_ATTR_CIDR])
+		e.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
+
+	if(tb[IPSET_ATTR_CIDR2])
+		e.cidr2 = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
+
+	if (!e.cidr || e.cidr > HOST_MASK || !e.cidr2 || e.cidr2 > HOST_MASK)
+		return -IPSET_ERR_INVALID_CIDR;
+
+	ip6_netmask(&e.ip, e.cidr);
+	ip6_netmask(&e.ip2, e.cidr2);
+
+	if (tb[IPSET_ATTR_CADT_FLAGS]) {
+		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+		if (cadt_flags & IPSET_FLAG_NOMATCH)
+			flags |= (IPSET_FLAG_NOMATCH << 16);
+	}
+
+	ret = adtfn(set, &e, &ext, &ext, flags);
+
+	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
+	       ip_set_eexist(ret, flags) ? 0 : ret;
+}
+
+static struct ip_set_type hash_netnet_type __read_mostly = {
+	.name		= "hash:net,net",
+	.protocol	= IPSET_PROTOCOL,
+	.features	= IPSET_TYPE_IP | IPSET_TYPE_IP2 | IPSET_TYPE_NOMATCH,
+	.dimension	= IPSET_DIM_TWO,
+	.family		= NFPROTO_UNSPEC,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
+	.create		= hash_netnet_create,
+	.create_policy	= {
+		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
+		[IPSET_ATTR_MAXELEM]	= { .type = NLA_U32 },
+		[IPSET_ATTR_PROBES]	= { .type = NLA_U8 },
+		[IPSET_ATTR_RESIZE]	= { .type = NLA_U8  },
+		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
+		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
+	},
+	.adt_policy	= {
+		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP2]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP2_TO]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
+		[IPSET_ATTR_CIDR2]	= { .type = NLA_U8 },
+		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
+		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
+		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
+		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+	},
+	.me		= THIS_MODULE,
+};
+
+static int __init
+hash_netnet_init(void)
+{
+	return ip_set_type_register(&hash_netnet_type);
+}
+
+static void __exit
+hash_netnet_fini(void)
+{
+	ip_set_type_unregister(&hash_netnet_type);
+}
+
+module_init(hash_netnet_init);
+module_exit(hash_netnet_fini);
diff --git a/lib/Makefile.am b/lib/Makefile.am
index ccc02aa..32fc820 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -9,6 +9,7 @@ IPSET_SETTYPE_LIST = \
 	ipset_hash_ipportip.c \
 	ipset_hash_ipportnet.c \
 	ipset_hash_net.c \
+	ipset_hash_netnet.c \
 	ipset_hash_netport.c \
 	ipset_hash_netiface.c \
 	ipset_list_set.c
diff --git a/lib/ipset_hash_netnet.c b/lib/ipset_hash_netnet.c
new file mode 100644
index 0000000..5cc5a40
--- /dev/null
+++ b/lib/ipset_hash_netnet.c
@@ -0,0 +1,158 @@
+/* Copyright 2007-2010 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
+ * Copyright 2013 Oliver Smith (oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <libipset/data.h>			/* IPSET_OPT_* */
+#include <libipset/parse.h>			/* parser functions */
+#include <libipset/print.h>			/* printing functions */
+#include <libipset/types.h>			/* prototypes */
+
+/* Parse commandline arguments */
+static const struct ipset_arg hash_netnet_create_args0[] = {
+	{ .name = { "family", NULL },
+	  .has_arg = IPSET_MANDATORY_ARG,	.opt = IPSET_OPT_FAMILY,
+	  .parse = ipset_parse_family,		.print = ipset_print_family,
+	},
+	/* Alias: family inet */
+	{ .name = { "-4", NULL },
+	  .has_arg = IPSET_NO_ARG,		.opt = IPSET_OPT_FAMILY,
+	  .parse = ipset_parse_family,
+	},
+	/* Alias: family inet6 */
+	{ .name = { "-6", NULL },
+	  .has_arg = IPSET_NO_ARG,		.opt = IPSET_OPT_FAMILY,
+	  .parse = ipset_parse_family,
+	},
+	{ .name = { "hashsize", NULL },
+	  .has_arg = IPSET_MANDATORY_ARG,	.opt = IPSET_OPT_HASHSIZE,
+	  .parse = ipset_parse_uint32,		.print = ipset_print_number,
+	},
+	{ .name = { "maxelem", NULL },
+	  .has_arg = IPSET_MANDATORY_ARG,	.opt = IPSET_OPT_MAXELEM,
+	  .parse = ipset_parse_uint32,		.print = ipset_print_number,
+	},
+	{ .name = { "timeout", NULL },
+	  .has_arg = IPSET_MANDATORY_ARG,	.opt = IPSET_OPT_TIMEOUT,
+	  .parse = ipset_parse_timeout,		.print = ipset_print_number,
+	},
+	{ .name = { "counters", NULL },
+	  .has_arg = IPSET_NO_ARG,		.opt = IPSET_OPT_COUNTERS,
+	  .parse = ipset_parse_flag,		.print = ipset_print_flag,
+	},
+	{ },
+};
+
+static const struct ipset_arg hash_netnet_add_args0[] = {
+	{ .name = { "timeout", NULL },
+	  .has_arg = IPSET_MANDATORY_ARG,	.opt = IPSET_OPT_TIMEOUT,
+	  .parse = ipset_parse_timeout,		.print = ipset_print_number,
+	},
+	{ .name = { "nomatch", NULL },
+	  .has_arg = IPSET_NO_ARG,		.opt = IPSET_OPT_NOMATCH,
+	  .parse = ipset_parse_flag,		.print = ipset_print_flag,
+	},
+	{ .name = { "packets", NULL },
+	  .has_arg = IPSET_MANDATORY_ARG,	.opt = IPSET_OPT_PACKETS,
+	  .parse = ipset_parse_uint64,		.print = ipset_print_number,
+	},
+	{ .name = { "bytes", NULL },
+	  .has_arg = IPSET_MANDATORY_ARG,	.opt = IPSET_OPT_BYTES,
+	  .parse = ipset_parse_uint64,		.print = ipset_print_number,
+	},
+	{ },
+};
+
+static const struct ipset_arg hash_netnet_test_args0[] = {
+	{ .name = { "nomatch", NULL },
+	  .has_arg = IPSET_NO_ARG,		.opt = IPSET_OPT_NOMATCH,
+	  .parse = ipset_parse_flag,		.print = ipset_print_flag,
+	},
+	{ },
+};
+
+static const char hash_netnet_usage0[] =
+"create SETNAME hash:net,net\n"
+"		[family inet|inet6]\n"
+"               [hashsize VALUE] [maxelem VALUE]\n"
+"               [timeout VALUE] [counters]\n"
+"add    SETNAME IP[/CIDR]|FROM-TO IP[/CIDR]|FROM-TO [timeout VALUE] [nomatch]\n"
+"               [packets VALUE] [bytes VALUE]\n"
+"del    SETNAME IP[/CIDR]|FROM-TO IP[/CIDR]|FROM-TO\n"
+"test   SETNAME IP[/CIDR] IP[/CIDR]\n\n"
+"where depending on the INET family\n"
+"      IP is an IPv4 or IPv6 address (or hostname),\n"
+"      CIDR is a valid IPv4 or IPv6 CIDR prefix.\n"
+"      IP range is not supported with IPv6.\n";
+
+static struct ipset_type ipset_hash_netnet0 = {
+	.name = "hash:net,net",
+	.alias = { "netnethash", NULL },
+	.revision = 0,
+	.family = NFPROTO_IPSET_IPV46,
+	.dimension = IPSET_DIM_TWO,
+	.elem = {
+		[IPSET_DIM_ONE - 1] = {
+			.parse = ipset_parse_ip4_net6,
+			.print = ipset_print_ip,
+			.opt = IPSET_OPT_IP
+		},
+		[IPSET_DIM_TWO - 1] = {
+			.parse = ipset_parse_ip4_net6,
+			.print = ipset_print_ip,
+			.opt = IPSET_OPT_IP2
+		},
+	},
+	.args = {
+		[IPSET_CREATE] = hash_netnet_create_args0,
+		[IPSET_ADD] = hash_netnet_add_args0,
+		[IPSET_TEST] = hash_netnet_test_args0,
+	},
+	.mandatory = {
+		[IPSET_CREATE] = 0,
+		[IPSET_ADD] = IPSET_FLAG(IPSET_OPT_IP)
+			| IPSET_FLAG(IPSET_OPT_IP2),
+		[IPSET_DEL] = IPSET_FLAG(IPSET_OPT_IP)
+			| IPSET_FLAG(IPSET_OPT_IP2),
+		[IPSET_TEST] = IPSET_FLAG(IPSET_OPT_IP)
+			| IPSET_FLAG(IPSET_OPT_IP2),
+	},
+	.full = {
+		[IPSET_CREATE] = IPSET_FLAG(IPSET_OPT_HASHSIZE)
+			| IPSET_FLAG(IPSET_OPT_MAXELEM)
+			| IPSET_FLAG(IPSET_OPT_TIMEOUT)
+			| IPSET_FLAG(IPSET_OPT_COUNTERS),
+		[IPSET_ADD] = IPSET_FLAG(IPSET_OPT_IP)
+			| IPSET_FLAG(IPSET_OPT_CIDR)
+			| IPSET_FLAG(IPSET_OPT_IP_TO)
+			| IPSET_FLAG(IPSET_OPT_IP2)
+			| IPSET_FLAG(IPSET_OPT_CIDR2)
+			| IPSET_FLAG(IPSET_OPT_IP2_TO)
+			| IPSET_FLAG(IPSET_OPT_TIMEOUT)
+			| IPSET_FLAG(IPSET_OPT_NOMATCH)
+			| IPSET_FLAG(IPSET_OPT_PACKETS)
+			| IPSET_FLAG(IPSET_OPT_BYTES),
+		[IPSET_DEL] = IPSET_FLAG(IPSET_OPT_IP)
+			| IPSET_FLAG(IPSET_OPT_CIDR)
+			| IPSET_FLAG(IPSET_OPT_IP_TO)
+			| IPSET_FLAG(IPSET_OPT_IP2)
+			| IPSET_FLAG(IPSET_OPT_CIDR2)
+			| IPSET_FLAG(IPSET_OPT_IP2_TO),
+		[IPSET_TEST] = IPSET_FLAG(IPSET_OPT_IP)
+			| IPSET_FLAG(IPSET_OPT_CIDR)
+			| IPSET_FLAG(IPSET_OPT_IP2)
+			| IPSET_FLAG(IPSET_OPT_CIDR2)
+			| IPSET_FLAG(IPSET_OPT_NOMATCH),
+	},
+
+	.usage = hash_netnet_usage0,
+	.description = "counters support",
+};
+
+void _init(void);
+void _init(void)
+{
+	ipset_type_add(&ipset_hash_netnet0);
+}
diff --git a/src/ipset.8 b/src/ipset.8
index d7fa964..b53e94d 100644
--- a/src/ipset.8
+++ b/src/ipset.8
@@ -534,6 +534,80 @@ ipset add foo 192.168.0/30 nomatch
 When matching the elements in the set above, all IP addresses will match
 from the networks 192.168.0.0/24, 10.1.0.0/16 and 192.168.0/24 except
 the ones from 192.168.0/30.
+.SS hash:net,net
+The \fBhash:net,net\fR set type uses a hash to store pairs of different sized IP
+network addresses.  Bear  in  mind  that  the  first parameter has precedence
+over the second, so a nomatch entry could be potentially be ineffective if a more specific
+first parameter existed with a suitable second parameter.
+Network address with zero prefix size cannot be stored in this type of set.
+.PP
+\fICREATE\-OPTIONS\fR := [ \fBfamily\fR { \fBinet\fR | \fBinet6\fR } ] | [ \fBhashsize\fR \fIvalue\fR ] [ \fBmaxelem\fR \fIvalue\fR ] [ \fBtimeout\fR \fIvalue\fR ] [ \fBcounters\fP ]
+.PP
+\fIADD\-ENTRY\fR := \fInetaddr\fR,\fInetaddr\fR
+.PP
+\fIADD\-OPTIONS\fR := [ \fBtimeout\fR \fIvalue\fR ] [ \fBnomatch\fR ] [ \fBpackets\fR \fIvalue\fR ] [ \fBbytes\fR \fIvalue\fR ]
+.PP
+\fIDEL\-ENTRY\fR := \fInetaddr\fR,\fInetaddr\fR
+.PP
+\fITEST\-ENTRY\fR := \fInetaddr\fR,\fInetaddr,\fR
+.PP
+where
+\fInetaddr\fR := \fIip\fR[/\fIcidr\fR]
+.PP
+Optional \fBcreate\fR options:
+.TP
+\fBfamily\fR { \fBinet\fR | \fBinet6\fR }
+The protocol family of the IP addresses to be stored in the set. The default is
+\fBinet\fR, i.e IPv4.
+.TP
+\fBhashsize\fR \fIvalue\fR
+The initial hash size for the set, default is 1024. The hash size must be a power
+of two, the kernel automatically rounds up non power of two hash sizes to the first
+correct value.
+.TP
+\fBmaxelem\fR \fIvalue\fR
+The maximal number of elements which can be stored in the set, default 65536.
+.PP
+For the \fBinet\fR family one can add or delete multiple entries by specifying
+a range, which is converted internally to network(s) equal to the range:
+.PP
+\fInetaddr\fR := { \fIip\fR[/\fIcidr\fR] | \fIfromaddr\fR\-\fItoaddr\fR }
+.PP
+When adding/deleting/testing entries, if the cidr prefix parameter is not specified,
+then the host prefix value is assumed. When adding/deleting entries, the exact
+element is added/deleted and overlapping elements are not checked by the kernel.
+When testing entries, if a host address is tested, then the kernel tries to match
+the host address in the networks added to the set and reports the result accordingly.
+.PP
+From the \fBset\fR netfilter match point of view the searching for a match
+always  starts  from  the smallest  size  of netblock (most specific
+prefix) to the largest one (least specific prefix) with the first param
+having precedence.
+When  adding/deleting IP addresses  to the set by the \fBSET\fR netfilter target,
+it  will  be  added/deleted  by  the most specific prefix which can be found in
+the set, or by the host prefix value if the set is empty.
+.PP
+The lookup time grows linearly with the number of the different prefix
+values added to the first parameter of the set. The number of secondary prefixes
+further increases this as the list of secondary prefixes is traversed per primary
+prefix.
+.PP
+Example:
+.IP
+ipset create foo hash:net,net
+.IP
+ipset add foo 192.168.0.0/24,10.0.1.0/24
+.IP
+ipset add foo 10.1.0.0/16,10.255.0.0/24
+.IP
+ipset add foo 192.168.0/24,192.168.54.0-192.168.54.255
+.IP
+ipset add foo 192.168.0/30,192.168.64/30 nomatch
+.PP
+When matching the elements in the set above, all IP addresses will match
+from the networks 192.168.0.0/24<->10.0.1.0/24, 10.1.0.0/16<->10.255.0.0/24
+and 192.168.0/24<->192.168.54.0/24 except the ones from
+192.168.0/30<->192.168.64/30.
 .SS hash:ip,port
 The \fBhash:ip,port\fR set type uses a hash to store IP address and port number pairs.
 The port number is interpreted together with a protocol (default TCP) and zero
diff --git a/tests/hash:net,net.t b/tests/hash:net,net.t
new file mode 100644
index 0000000..ed708d2
--- /dev/null
+++ b/tests/hash:net,net.t
@@ -0,0 +1,155 @@
+# Create a set with timeout
+0 ipset create test hash:net,net hashsize 128 timeout 5
+# Add zero valued element
+1 ipset add test 0.0.0.0/0,0.0.0.0/0
+# Test zero valued element
+1 ipset test test 0.0.0.0/0,0.0.0.0/0
+# Delete zero valued element
+1 ipset del test 0.0.0.0/0,0.0.0.0/0
+# Try to add /0
+1 ipset add test 1.1.1.1/0,1.1.1.1/0
+# Try to add /32
+0 ipset add test 1.1.1.1/32,1.1.1.2/32
+# Add almost zero valued element
+0 ipset add test 0.0.0.0/1,0.0.0.0/1
+# Test almost zero valued element
+0 ipset test test 0.0.0.0/1,0.0.0.0/1
+# Delete almost zero valued element
+0 ipset del test 0.0.0.0/1,0.0.0.0/1
+# Test deleted element
+1 ipset test test 0.0.0.0/1,0.0.0.0/1
+# Delete element not added to the set
+1 ipset del test 0.0.0.0/1,0.0.0.0/1
+# Add first random network
+0 ipset add test 2.0.0.1/24,2.0.1.1/24
+# Add second random network
+0 ipset add test 192.168.68.69/27,192.168.129.69/27
+# Test first random value
+0 ipset test test "2.0.0.255,2.0.1.255"
+# Test second random value
+0 ipset test test 192.168.68.95,192.168.129.75
+# Test value not added to the set
+1 ipset test test 2.0.1.0,2.0.0.1
+# Try to add IP address
+0 ipset add test 2.0.0.1,2.0.0.2
+# List set
+0 ipset list test | grep -v Revision: | sed 's/timeout ./timeout x/' > .foo0 && ./sort.sh .foo0
+# Check listing
+0 diff -u -I 'Size in memory.*' .foo hash:net,net.t.list0
+# Sleep 5s so that element can time out
+0 sleep 5
+# List set
+0 ipset -L test 2>/dev/null | grep -v Revision: > .foo0 && ./sort.sh .foo0
+# Check listing
+0 diff -u -I 'Size in memory.*' .foo hash:net,net.t.list1
+# Flush test set
+0 ipset flush test
+# Delete test set
+0 ipset destroy test
+# Create test set
+0 ipset new test hash:net,net
+# Add networks in range notation
+0 ipset add test 10.2.0.0-10.2.1.12,10.3.0.0-10.3.1.12
+# List set
+0 ipset -L test 2>/dev/null | grep -v Revision: > .foo0 && ./sort.sh .foo0
+# Check listing
+0 diff -u -I 'Size in memory.*' .foo hash:net,net.t.list2
+# Delete test set
+0 ipset destroy test
+# Stress test with range notation
+0 ./netnetgen.sh | ipset restore
+# List set and check the number of elements
+0 n=`ipset -L test|grep '^10.'|wc -l` && test $n -eq 87040
+# Destroy test set
+0 ipset destroy test
+# Create test set with timeout support
+0 ipset create test hash:net,net timeout 30
+# Add a non-matching IP address entry
+0 ipset -A test 1.1.1.1,1.1.1.2 nomatch
+# Add an overlapping matching small net
+0 ipset -A test 1.1.1.0/30,1.1.1.0/30
+# Add an overlapping non-matching larger net
+0 ipset -A test 1.1.1.0/28,1.1.1.0/28 nomatch
+# Add an even larger matching net
+0 ipset -A test 1.1.1.0/26,1.1.1.0/26
+# Check non-matching IP
+1 ipset -T test 1.1.1.1,1.1.1.2
+# Check matching IP from non-matchin small net
+0 ipset -T test 1.1.1.3,1.1.1.2
+# Check non-matching IP from larger net
+1 ipset -T test 1.1.1.4,1.1.1.4
+# Check matching IP from even larger net
+0 ipset -T test 1.1.1.16,1.1.1.16
+# Update non-matching IP to matching one
+0 ipset -! -A test 1.1.1.1,1.1.1.2
+# Delete overlapping small net
+0 ipset -D test 1.1.1.0/30,1.1.1.0/30
+# Check matching IP
+0 ipset -T test 1.1.1.1,1.1.1.2
+# Add overlapping small net
+0 ipset -A test 1.1.1.0/30,1.1.1.0/30
+# Update matching IP as a non-matching one, with shorter timeout
+0 ipset -! -A test 1.1.1.1,1.1.1.2 nomatch timeout 2
+# Check non-matching IP
+1 ipset -T test 1.1.1.1,1.1.1.2
+# Sleep 3s so that element can time out
+0 sleep 3
+# Check non-matching IP
+0 ipset -T test 1.1.1.1,1.1.1.2
+# Check matching IP
+0 ipset -T test 1.1.1.3,1.1.1.2
+# Delete test set
+0 ipset destroy test
+# Timeout: Check that resizing keeps timeout values
+0 ./resizet.sh -4 netnet
+# Nomatch: Check that resizing keeps the nomatch flag
+0 ./resizen.sh -4 netnet
+# Counters: create set
+0 ipset n test hash:net,net counters
+# Counters: add element with packet, byte counters
+0 ipset a test 2.0.0.1/24,2.0.0.1/24 packets 5 bytes 3456
+# Counters: check element
+0 ipset t test 2.0.0.1/24,2.0.0.1/24
+# Counters: check counters
+0 ./check_counters test 2.0.0.0/24,2.0.0.0/24 5 3456
+# Counters: delete element
+0 ipset d test 2.0.0.1/24,2.0.0.1/24
+# Counters: test deleted element
+1 ipset t test 2.0.0.1/24,2.0.0.1/24
+# Counters: add element with packet, byte counters
+0 ipset a test 2.0.0.20/25,2.0.0.20/25 packets 12 bytes 9876
+# Counters: check counters
+0 ./check_counters test 2.0.0.0/25,2.0.0.0/25 12 9876
+# Counters: update counters
+0 ipset -! a test 2.0.0.20/25,2.0.0.20/25 packets 13 bytes 12479
+# Counters: check counters
+0 ./check_counters test 2.0.0.0/25,2.0.0.0/25 13 12479
+# Counters: destroy set
+0 ipset x test
+# Counters and timeout: create set
+0 ipset n test hash:net,net counters timeout 600
+# Counters and timeout: add element with packet, byte counters
+0 ipset a test 2.0.0.1/24,2.0.0.1/24 packets 5 bytes 3456
+# Counters and timeout: check element
+0 ipset t test 2.0.0.1/24,2.0.0.1/24
+# Counters and timeout: check counters
+0 ./check_extensions test 2.0.0.0/24,2.0.0.0/24 600 5 3456
+# Counters and timeout: delete element
+0 ipset d test 2.0.0.1/24,2.0.0.1/24
+# Counters and timeout: test deleted element
+1 ipset t test 2.0.0.1/24,2.0.0.1/24
+# Counters and timeout: add element with packet, byte counters
+0 ipset a test 2.0.0.20/25,2.0.0.20/25 packets 12 bytes 9876
+# Counters and timeout: check counters
+0 ./check_extensions test 2.0.0.0/25,2.0.0.0/25 600 12 9876
+# Counters and timeout: update counters
+0 ipset -! a test 2.0.0.20/25,2.0.0.20/25 packets 13 bytes 12479
+# Counters and timeout: check counters
+0 ./check_extensions test 2.0.0.0/25,2.0.0.0/25 600 13 12479
+# Counters and timeout: update timeout
+0 ipset -! a test 2.0.0.20/25,2.0.0.20/25 timeout 700
+# Counters and timeout: check counters
+0 ./check_extensions test 2.0.0.0/25,2.0.0.0/25 700 13 12479
+# Counters and timeout: destroy set
+0 ipset x test
+# eof
diff --git a/tests/hash:net,net.t.list0 b/tests/hash:net,net.t.list0
new file mode 100644
index 0000000..b759316
--- /dev/null
+++ b/tests/hash:net,net.t.list0
@@ -0,0 +1,10 @@
+Name: test
+Type: hash:net,net
+Header: family inet hashsize 128 maxelem 65536 timeout x
+Size in memory: 3040
+References: 0
+Members:
+1.1.1.1,1.1.1.2 timeout x
+192.168.68.64/27,192.168.129.64/27 timeout x
+2.0.0.0/24,2.0.1.0/24 timeout x
+2.0.0.1,2.0.0.2 timeout x
diff --git a/tests/hash:net,net.t.list1 b/tests/hash:net,net.t.list1
new file mode 100644
index 0000000..d27b4a4
--- /dev/null
+++ b/tests/hash:net,net.t.list1
@@ -0,0 +1,6 @@
+Name: test
+Type: hash:net,net
+Header: family inet hashsize 128 maxelem 65536 timeout 5
+Size in memory: 3040
+References: 0
+Members:
diff --git a/tests/hash:net,net.t.list2 b/tests/hash:net,net.t.list2
new file mode 100644
index 0000000..adf26ff
--- /dev/null
+++ b/tests/hash:net,net.t.list2
@@ -0,0 +1,22 @@
+Name: test
+Type: hash:net,net
+Header: family inet hashsize 1024 maxelem 65536
+Size in memory: 17664
+References: 0
+Members:
+10.2.0.0/24,10.3.0.0/24
+10.2.0.0/24,10.3.1.0/29
+10.2.0.0/24,10.3.1.12
+10.2.0.0/24,10.3.1.8/30
+10.2.1.0/29,10.3.0.0/24
+10.2.1.0/29,10.3.1.0/29
+10.2.1.0/29,10.3.1.12
+10.2.1.0/29,10.3.1.8/30
+10.2.1.12,10.3.0.0/24
+10.2.1.12,10.3.1.0/29
+10.2.1.12,10.3.1.12
+10.2.1.12,10.3.1.8/30
+10.2.1.8/30,10.3.0.0/24
+10.2.1.8/30,10.3.1.0/29
+10.2.1.8/30,10.3.1.12
+10.2.1.8/30,10.3.1.8/30
diff --git a/tests/hash:net6,net6.t b/tests/hash:net6,net6.t
new file mode 100644
index 0000000..1b60875
--- /dev/null
+++ b/tests/hash:net6,net6.t
@@ -0,0 +1,139 @@
+# Create a set with timeout
+0 ipset create test hash:net,net family inet6 hashsize 128 timeout 5
+# Add zero valued element
+1 ipset add test ::/0,::/0
+# Test zero valued element
+1 ipset test test ::/0,::/0
+# Delete zero valued element
+1 ipset del test ::/0,::/0
+# Try to add /0
+1 ipset add test 1:1:1::1/0,1:1:1::1/0
+# Try to add /128
+0 ipset add test 1:1:1::1/128,2:2:2::2/128
+# Add almost zero valued element
+0 ipset add test 0:0:0::0/1,0:0:0::0/1
+# Test almost zero valued element
+0 ipset test test 0:0:0::0/1,0:0:0::0/1
+# Delete almost zero valued element
+0 ipset del test 0:0:0::0/1,0:0:0::0/1
+# Test deleted element
+1 ipset test test 0:0:0::0/1,0:0:0::0/1
+# Delete element not added to the set
+1 ipset del test 0:0:0::0/1,0:0:0::0/1
+# Add first random network
+0 ipset add test 2:0:0::1/24,4:0:0::1/32
+# Add second random network
+0 ipset add test 192:168:68::69/27,172:16:68::69/48
+# Test first random value
+0 ipset test test 2:0:0::255,4:0:0::54
+# Test second random value
+0 ipset test test 192:168:68::95,172:16:68::68
+# Test value not added to the set
+1 ipset test test 3:0:0::1,172:255:24::1
+# Try to add IP address
+0 ipset add test 3:0:0::1,8:0:0::1
+# List set
+0 ipset list test | grep -v Revision: | sed 's/timeout ./timeout x/' > .foo0 && ./sort.sh .foo0
+# Check listing
+0 diff -u -I 'Size in memory.*' .foo hash:net6,net6.t.list0
+# Sleep 5s so that element can time out
+0 sleep 5
+# IP: List set
+0 ipset -L test 2>/dev/null | grep -v Revision: > .foo0 && ./sort.sh .foo0
+# IP: Check listing
+0 diff -u -I 'Size in memory.*' .foo hash:net6,net6.t.list1
+# Flush test set
+0 ipset flush test
+# Delete test set
+0 ipset destroy test
+# Create test set with timeout support
+0 ipset create test hash:net,net family inet6 timeout 30
+# Add a non-matching IP address entry
+0 ipset -A test 1:1:1::1,2:2:2::2 nomatch
+# Add an overlapping matching small net
+0 ipset -A test 1:1:1::/124,2:2:2::/124
+# Add an overlapping non-matching larger net
+0 ipset -A test 1:1:1::/120,2:2:2::/120 nomatch
+# Add an even larger matching net
+0 ipset -A test 1:1:1::/116,2:2:2::/116
+# Check non-matching IP
+1 ipset -T test 1:1:1::1,2:2:2::2
+# Check matching IP from non-matchin small net
+0 ipset -T test 1:1:1::f,2:2:2::f
+# Check non-matching IP from larger net
+1 ipset -T test 1:1:1::10,2:2:2::10
+# Check matching IP from even larger net
+0 ipset -T test 1:1:1::100,2:2:2::100
+# Update non-matching IP to matching one
+0 ipset -! -A test 1:1:1::1,2:2:2::2
+# Delete overlapping small net
+0 ipset -D test 1:1:1::/124,2:2:2::/124
+# Check matching IP
+0 ipset -T test 1:1:1::1,2:2:2::2
+# Add overlapping small net
+0 ipset -A test 1:1:1::/124,2:2:2::/124
+# Update matching IP as a non-matching one, with shorter timeout
+0 ipset -! -A test 1:1:1::1,2:2:2::2 nomatch timeout 2
+# Check non-matching IP
+1 ipset -T test 1:1:1::1,2:2:2::2
+# Sleep 3s so that element can time out
+0 sleep 3
+# Check non-matching IP
+0 ipset -T test 1:1:1::1,2:2:2::2
+# Check matching IP
+0 ipset -T test 1:1:1::f,2:2:2::f
+# Delete test set
+0 ipset destroy test
+# Timeout: Check that resizing keeps timeout values
+0 ./resizet.sh -6 net
+# Nomatch: Check that resizing keeps the nomatch flag
+0 ./resizen.sh -6 net
+# Counters: create set
+0 ipset n test hash:net,net -6 counters
+# Counters: add element with packet, byte counters
+0 ipset a test 2:0:0::1/64,3:0:0::1/64 packets 5 bytes 3456
+# Counters: check element
+0 ipset t test 2:0:0::1/64,3:0:0::1/64
+# Counters: check counters
+0 ./check_counters test 2:: 5 3456
+# Counters: delete element
+0 ipset d test 2:0:0::1/64,3:0:0::1/64
+# Counters: test deleted element
+1 ipset t test 2:0:0::1/64,3:0:0::1/64
+# Counters: add element with packet, byte counters
+0 ipset a test 2:0:0::20/54,3:0:0::20/54 packets 12 bytes 9876
+# Counters: check counters
+0 ./check_counters test 2:: 12 9876
+# Counters: update counters
+0 ipset -! a test 2:0:0::20/54,3:0:0::20/54 packets 13 bytes 12479
+# Counters: check counters
+0 ./check_counters test 2:: 13 12479
+# Counters: destroy set
+0 ipset x test
+# Counters and timeout: create set
+0 ipset n test hash:net,net -6 counters timeout 600
+# Counters and timeout: add element with packet, byte counters
+0 ipset a test 2:0:0::1/64,3:0:0::1/64 packets 5 bytes 3456
+# Counters and timeout: check element
+0 ipset t test 2:0:0::1/64,3:0:0::1/64
+# Counters and timeout: check counters
+0 ./check_extensions test 2:: 600 5 3456
+# Counters and timeout: delete element
+0 ipset d test 2:0:0::1/64,3:0:0::1/64
+# Counters and timeout: test deleted element
+1 ipset t test 2:0:0::1/64,3:0:0::1/64
+# Counters and timeout: add element with packet, byte counters
+0 ipset a test 2:0:0::20/54,3:0:0::20/54 packets 12 bytes 9876
+# Counters and timeout: check counters
+0 ./check_extensions test 2:: 600 12 9876
+# Counters and timeout: update counters
+0 ipset -! a test 2:0:0::20/54,3:0:0::20/54 packets 13 bytes 12479
+# Counters and timeout: check counters
+0 ./check_extensions test 2:: 600 13 12479
+# Counters and timeout: update timeout
+0 ipset -! a test 2:0:0::20/54,3:0:0::20/54 timeout 700
+# Counters and timeout: check counters
+0 ./check_extensions test 2:: 700 13 12479
+# Counters and timeout: destroy set
+0 ipset x test
+# eof
diff --git a/tests/hash:net6,net6.t.list0 b/tests/hash:net6,net6.t.list0
new file mode 100644
index 0000000..ea78bbb
--- /dev/null
+++ b/tests/hash:net6,net6.t.list0
@@ -0,0 +1,10 @@
+Name: test
+Type: hash:net,net
+Header: family inet6 hashsize 128 maxelem 65536 timeout x
+Size in memory: 4672
+References: 0
+Members:
+192:160::/27,172:16:68::/48 timeout x
+1:1:1::1,2:2:2::2 timeout x
+2::/24,4::/32 timeout x
+3::1,8::1 timeout x
diff --git a/tests/hash:net6,net6.t.list1 b/tests/hash:net6,net6.t.list1
new file mode 100644
index 0000000..0e1b7d2
--- /dev/null
+++ b/tests/hash:net6,net6.t.list1
@@ -0,0 +1,6 @@
+Name: test
+Type: hash:net,net
+Header: family inet6 hashsize 128 maxelem 65536 timeout 5
+Size in memory: 4672
+References: 0
+Members:
diff --git a/tests/netnetgen.sh b/tests/netnetgen.sh
new file mode 100755
index 0000000..e33710e
--- /dev/null
+++ b/tests/netnetgen.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+echo "n test hash:net,net hashsize 32 maxelem 87040"
+for x in `seq 0 255`; do
+    for y in `seq 0 3 253`; do
+	z=$((y+2))
+	echo "a test 10.0.0.0-10.0.2.255,10.$x.$y.0-10.$x.$z.255"
+    done
+done
diff --git a/tests/resizen.sh b/tests/resizen.sh
index 1294efc..7df5dc8 100644
--- a/tests/resizen.sh
+++ b/tests/resizen.sh
@@ -47,6 +47,19 @@ case "$2" in
     	    done
     	done
     	;;
+    netnet)
+	$ipset n test hash:net,net $1 hashsize 64
+	for x in `seq 0 16`; do
+	    for y in `seq 0 255`; do
+		$ipset a test $ip$x$sep$y/$net,$ip$y$sep$x/$net nomatch
+	    done
+	done
+	for x in `seq 0 16`; do
+	    for y in `seq 0 255`; do
+		$ipset t test $ip$x$sep$y/$net,$ip$y$sep$x/$net nomatch 2>/dev/null
+	    done
+	done
+	;;
     netport)
     	$ipset n test hash:net,port $1 hashsize 64
     	for x in `seq 0 16`; do
diff --git a/tests/resizet.sh b/tests/resizet.sh
index 74fb19e..ff98d58 100644
--- a/tests/resizet.sh
+++ b/tests/resizet.sh
@@ -61,6 +61,14 @@ case "$2" in
     	    done
     	done
     	;;
+    netnet)
+	$ipset n test hash:net,net $1 hashsize 64 timeout 100
+	for x in `seq 0 16`; do
+	    for y in `seq 0 255`; do
+		$ipset a test $ip$x$sep$y/$net,$ip$y$sep$x/$net
+	    done
+	done
+	;;
     netport)
     	$ipset n test hash:net,port $1 hashsize 64 timeout 100
     	for x in `seq 0 16`; do
diff --git a/tests/runtest.sh b/tests/runtest.sh
index b14f151..261a657 100755
--- a/tests/runtest.sh
+++ b/tests/runtest.sh
@@ -8,7 +8,7 @@ tests="$tests macipmap portmap"
 tests="$tests iphash hash:ip hash:ip6"
 tests="$tests ipporthash hash:ip,port hash:ip6,port"
 tests="$tests ipportiphash hash:ip,port,ip hash:ip6,port,ip6"
-tests="$tests nethash hash:net hash:net6 hash:net,port hash:net6,port"
+tests="$tests nethash hash:net hash:net6 hash:net,port hash:net6,port hash:net,net hash:net6,net6"
 tests="$tests hash:ip,port,net hash:ip6,port,net6"
 tests="$tests hash:net,iface.t"
 tests="$tests setlist restore"
