diff --git a/include/net/addrconf.h b/include/net/addrconf.h
new file mode 100644
index 0000000..7af9a13
--- /dev/null
+++ b/include/net/addrconf.h
@@ -0,0 +1,240 @@
+#ifndef _ADDRCONF_H
+#define _ADDRCONF_H
+
+#define RETRANS_TIMER	HZ
+
+#define MAX_RTR_SOLICITATIONS		3
+#define RTR_SOLICITATION_INTERVAL	(4*HZ)
+
+#define MIN_VALID_LIFETIME		(2*3600)	/* 2 hours */
+
+#define TEMP_VALID_LIFETIME		(7*86400)
+#define TEMP_PREFERRED_LIFETIME		(86400)
+#define REGEN_MAX_RETRY			(5)
+#define MAX_DESYNC_FACTOR		(600)
+
+#define ADDR_CHECK_FREQUENCY		(120*HZ)
+
+#define IPV6_MAX_ADDRESSES		16
+
+struct prefix_info {
+	__u8			type;
+	__u8			length;
+	__u8			prefix_len;
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+	__u8			onlink : 1,
+			 	autoconf : 1,
+				reserved : 6;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+	__u8			reserved : 6,
+				autoconf : 1,
+				onlink : 1;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+	__u32			valid;
+	__u32			prefered;
+	__u32			reserved2;
+
+	struct in6_addr		prefix;
+};
+
+
+#ifdef __KERNEL__
+
+#include <linux/in6.h>
+#include <linux/netdevice.h>
+#include <net/if_inet6.h>
+
+#define IN6_ADDR_HSIZE		16
+
+extern int			addrconf_init(void);
+extern void			addrconf_cleanup(void);
+
+extern int			addrconf_add_ifaddr(void __user *arg);
+extern int			addrconf_del_ifaddr(void __user *arg);
+extern int			addrconf_set_dstaddr(void __user *arg);
+
+extern int			ipv6_chk_addr(struct in6_addr *addr,
+					      struct net_device *dev,
+					      int strict);
+extern struct inet6_ifaddr *	ipv6_get_ifaddr(struct in6_addr *addr,
+						struct net_device *dev,
+						int strict);
+extern int			ipv6_get_saddr(struct dst_entry *dst, 
+					       struct in6_addr *daddr,
+					       struct in6_addr *saddr);
+extern int			ipv6_dev_get_saddr(struct net_device *dev, 
+					       struct in6_addr *daddr,
+					       struct in6_addr *saddr);
+extern int			ipv6_get_lladdr(struct net_device *dev, struct in6_addr *);
+extern int			ipv6_rcv_saddr_equal(const struct sock *sk, 
+						      const struct sock *sk2);
+extern void			addrconf_join_solict(struct net_device *dev,
+					struct in6_addr *addr);
+extern void			addrconf_leave_solict(struct inet6_dev *idev,
+					struct in6_addr *addr);
+
+/*
+ *	multicast prototypes (mcast.c)
+ */
+extern int ipv6_sock_mc_join(struct sock *sk, int ifindex, 
+		  struct in6_addr *addr);
+extern int ipv6_sock_mc_drop(struct sock *sk, int ifindex, 
+		  struct in6_addr *addr);
+extern void ipv6_sock_mc_close(struct sock *sk);
+extern int inet6_mc_check(struct sock *sk, struct in6_addr *mc_addr,
+		struct in6_addr *src_addr);
+
+extern int ipv6_dev_mc_inc(struct net_device *dev, struct in6_addr *addr);
+extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, struct in6_addr *addr);
+extern int ipv6_dev_mc_dec(struct net_device *dev, struct in6_addr *addr);
+extern void ipv6_mc_up(struct inet6_dev *idev);
+extern void ipv6_mc_down(struct inet6_dev *idev);
+extern void ipv6_mc_init_dev(struct inet6_dev *idev);
+extern void ipv6_mc_destroy_dev(struct inet6_dev *idev);
+extern void addrconf_dad_failure(struct inet6_ifaddr *ifp);
+
+extern int ipv6_chk_mcast_addr(struct net_device *dev, struct in6_addr *group,
+		struct in6_addr *src_addr);
+extern int ipv6_is_mld(struct sk_buff *skb, int nexthdr);
+
+extern void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len);
+
+extern int ipv6_get_hoplimit(struct net_device *dev);
+
+/*
+ *	anycast prototypes (anycast.c)
+ */
+extern int ipv6_sock_ac_join(struct sock *sk,int ifindex,struct in6_addr *addr);
+extern int ipv6_sock_ac_drop(struct sock *sk,int ifindex,struct in6_addr *addr);
+extern void ipv6_sock_ac_close(struct sock *sk);
+extern int inet6_ac_check(struct sock *sk, struct in6_addr *addr, int ifindex);
+
+extern int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr);
+extern int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr);
+extern int ipv6_chk_acast_addr(struct net_device *dev, struct in6_addr *addr);
+
+
+/* Device notifier */
+extern int register_inet6addr_notifier(struct notifier_block *nb);
+extern int unregister_inet6addr_notifier(struct notifier_block *nb);
+
+static inline struct inet6_dev *
+__in6_dev_get(struct net_device *dev)
+{
+	return (struct inet6_dev *)dev->ip6_ptr;
+}
+
+extern rwlock_t addrconf_lock;
+
+static inline struct inet6_dev *
+in6_dev_get(struct net_device *dev)
+{
+	struct inet6_dev *idev = NULL;
+	read_lock(&addrconf_lock);
+	idev = dev->ip6_ptr;
+	if (idev)
+		atomic_inc(&idev->refcnt);
+	read_unlock(&addrconf_lock);
+	return idev;
+}
+
+extern void in6_dev_finish_destroy(struct inet6_dev *idev);
+
+static inline void
+in6_dev_put(struct inet6_dev *idev)
+{
+	if (atomic_dec_and_test(&idev->refcnt))
+		in6_dev_finish_destroy(idev);
+}
+
+#define __in6_dev_put(idev)  atomic_dec(&(idev)->refcnt)
+#define in6_dev_hold(idev)   atomic_inc(&(idev)->refcnt)
+
+
+extern void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp);
+
+static inline void in6_ifa_put(struct inet6_ifaddr *ifp)
+{
+	if (atomic_dec_and_test(&ifp->refcnt))
+		inet6_ifa_finish_destroy(ifp);
+}
+
+#define __in6_ifa_put(ifp)	atomic_dec(&(ifp)->refcnt)
+#define in6_ifa_hold(ifp)	atomic_inc(&(ifp)->refcnt)
+
+
+extern void			addrconf_forwarding_on(void);
+/*
+ *	Hash function taken from net_alias.c
+ */
+
+static __inline__ u8 ipv6_addr_hash(const struct in6_addr *addr)
+{	
+	__u32 word;
+
+	/* 
+	 * We perform the hash function over the last 64 bits of the address
+	 * This will include the IEEE address token on links that support it.
+	 */
+
+	word = addr->s6_addr32[2] ^ addr->s6_addr32[3];
+	word ^= (word >> 16);
+	word ^= (word >> 8);
+
+	return ((word ^ (word >> 4)) & 0x0f);
+}
+
+/*
+ *	compute link-local solicited-node multicast address
+ */
+
+static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,
+					     struct in6_addr *solicited)
+{
+	ipv6_addr_set(solicited,
+		      __constant_htonl(0xFF020000), 0,
+		      __constant_htonl(0x1),
+		      __constant_htonl(0xFF000000) | addr->s6_addr32[3]);
+}
+
+
+static inline void ipv6_addr_all_nodes(struct in6_addr *addr)
+{
+	ipv6_addr_set(addr,
+		      __constant_htonl(0xFF020000), 0, 0,
+		      __constant_htonl(0x1));
+}
+
+static inline void ipv6_addr_all_routers(struct in6_addr *addr)
+{
+	ipv6_addr_set(addr,
+		      __constant_htonl(0xFF020000), 0, 0,
+		      __constant_htonl(0x2));
+}
+
+static inline int ipv6_addr_is_multicast(const struct in6_addr *addr)
+{
+	return (addr->s6_addr32[0] & __constant_htonl(0xFF000000)) == __constant_htonl(0xFF000000);
+}
+
+static inline int ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)
+{
+	return (addr->s6_addr32[0] == htonl(0xff020000) &&
+		addr->s6_addr32[1] == 0 &&
+		addr->s6_addr32[2] == 0 &&
+		addr->s6_addr32[3] == htonl(0x00000001));
+}
+
+static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
+{
+	return (addr->s6_addr32[0] == htonl(0xff020000) &&
+		addr->s6_addr32[1] == 0 &&
+		addr->s6_addr32[2] == 0 &&
+		addr->s6_addr32[3] == htonl(0x00000002));
+}
+
+#endif
+#endif