diff --git a/include/net/ipip.h b/include/net/ipip.h
new file mode 100644
index 0000000..7b5d3cc
--- /dev/null
+++ b/include/net/ipip.h
@@ -0,0 +1,65 @@
+#ifndef __NET_IPIP_H
+#define __NET_IPIP_H 1
+
+#include <linux/if_tunnel.h>
+#include <net/ip.h>
+
+#define IPTUNNEL_ERR_TIMEO	(30*HZ)
+
+struct ip_tunnel_6rd_parm {
+	struct in6_addr		prefix;
+	__be32			relay_prefix;
+	u16			prefixlen;
+	u16			relay_prefixlen;
+};
+
+struct ip_tunnel {
+	struct ip_tunnel __rcu	*next;
+	struct net_device	*dev;
+
+	int			err_count;	
+	unsigned long		err_time;	
+
+	
+	__u32			i_seqno;	
+	__u32			o_seqno;	
+	int			hlen;		
+	int			mlink;
+
+	struct ip_tunnel_parm	parms;
+
+	
+#ifdef CONFIG_IPV6_SIT_6RD
+	struct ip_tunnel_6rd_parm	ip6rd;
+#endif
+	struct ip_tunnel_prl_entry __rcu *prl;		
+	unsigned int			prl_count;	
+};
+
+struct ip_tunnel_prl_entry {
+	struct ip_tunnel_prl_entry __rcu *next;
+	__be32				addr;
+	u16				flags;
+	struct rcu_head			rcu_head;
+};
+
+#define __IPTUNNEL_XMIT(stats1, stats2) do {				\
+	int err;							\
+	int pkt_len = skb->len - skb_transport_offset(skb);		\
+									\
+	skb->ip_summed = CHECKSUM_NONE;					\
+	ip_select_ident(iph, &rt->dst, NULL);				\
+									\
+	err = ip_local_out(skb);					\
+	if (likely(net_xmit_eval(err) == 0)) {				\
+		(stats1)->tx_bytes += pkt_len;				\
+		(stats1)->tx_packets++;					\
+	} else {							\
+		(stats2)->tx_errors++;					\
+		(stats2)->tx_aborted_errors++;				\
+	}								\
+} while (0)
+
+#define IPTUNNEL_XMIT() __IPTUNNEL_XMIT(txq, stats)
+
+#endif