diff --git a/include/net/ndisc.h b/include/net/ndisc.h
new file mode 100644
index 0000000..f85d6e4
--- /dev/null
+++ b/include/net/ndisc.h
@@ -0,0 +1,135 @@
+#ifndef _NDISC_H
+#define _NDISC_H
+
+/*
+ *	ICMP codes for neighbour discovery messages
+ */
+
+#define NDISC_ROUTER_SOLICITATION	133
+#define NDISC_ROUTER_ADVERTISEMENT	134
+#define NDISC_NEIGHBOUR_SOLICITATION	135
+#define NDISC_NEIGHBOUR_ADVERTISEMENT	136
+#define NDISC_REDIRECT			137
+
+/*
+ *	ndisc options
+ */
+
+enum {
+	__ND_OPT_PREFIX_INFO_END = 0,
+	ND_OPT_SOURCE_LL_ADDR = 1,	/* RFC2461 */
+	ND_OPT_TARGET_LL_ADDR = 2,	/* RFC2461 */
+	ND_OPT_PREFIX_INFO = 3,		/* RFC2461 */
+	ND_OPT_REDIRECT_HDR = 4,	/* RFC2461 */
+	ND_OPT_MTU = 5,			/* RFC2461 */
+	__ND_OPT_MAX
+};
+
+#define MAX_RTR_SOLICITATION_DELAY	HZ
+
+#define ND_REACHABLE_TIME		(30*HZ)
+#define ND_RETRANS_TIMER		HZ
+
+#define ND_MIN_RANDOM_FACTOR		(1/2)
+#define ND_MAX_RANDOM_FACTOR		(3/2)
+
+#ifdef __KERNEL__
+
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/icmpv6.h>
+#include <net/neighbour.h>
+#include <asm/atomic.h>
+
+extern struct neigh_table nd_tbl;
+
+struct nd_msg {
+        struct icmp6hdr	icmph;
+        struct in6_addr	target;
+	__u8		opt[0];
+};
+
+struct rs_msg {
+	struct icmp6hdr	icmph;
+	__u8		opt[0];
+};
+
+struct ra_msg {
+        struct icmp6hdr		icmph;
+	__u32			reachable_time;
+	__u32			retrans_timer;
+};
+
+struct nd_opt_hdr {
+	__u8		nd_opt_type;
+	__u8		nd_opt_len;
+} __attribute__((__packed__));
+
+
+extern int			ndisc_init(struct net_proto_family *ops);
+
+extern void			ndisc_cleanup(void);
+
+extern int			ndisc_rcv(struct sk_buff *skb);
+
+extern void			ndisc_send_ns(struct net_device *dev,
+					      struct neighbour *neigh,
+					      struct in6_addr *solicit,
+					      struct in6_addr *daddr,
+					      struct in6_addr *saddr);
+
+extern void			ndisc_send_rs(struct net_device *dev,
+					      struct in6_addr *saddr,
+					      struct in6_addr *daddr);
+
+extern void			ndisc_forwarding_on(void);
+extern void			ndisc_forwarding_off(void);
+
+extern void			ndisc_send_redirect(struct sk_buff *skb,
+						    struct neighbour *neigh,
+						    struct in6_addr *target);
+
+extern int			ndisc_mc_map(struct in6_addr *addr, char *buf, struct net_device *dev, int dir);
+
+
+struct rt6_info *		dflt_rt_lookup(void);
+
+/*
+ *	IGMP
+ */
+extern int			igmp6_init(struct net_proto_family *ops);
+
+extern void			igmp6_cleanup(void);
+
+extern int			igmp6_event_query(struct sk_buff *skb);
+
+extern int			igmp6_event_report(struct sk_buff *skb);
+
+extern void			igmp6_cleanup(void);
+
+#ifdef CONFIG_SYSCTL
+extern int 			ndisc_ifinfo_sysctl_change(ctl_table *ctl,
+							   int write,
+							   struct file * filp,
+							   void __user *buffer,
+							   size_t *lenp,
+							   loff_t *ppos);
+#endif
+
+extern void 			inet6_ifinfo_notify(int event,
+						    struct inet6_dev *idev);
+
+static inline struct neighbour * ndisc_get_neigh(struct net_device *dev, struct in6_addr *addr)
+{
+
+	if (dev)
+		return __neigh_lookup(&nd_tbl, addr, dev, 1);
+
+	return NULL;
+}
+
+
+#endif /* __KERNEL__ */
+
+
+#endif