diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 648bd1f..213b63be 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -247,7 +247,7 @@
 	__u16			lastopt;
 	__u32			nhoff;
 	__u16			flags;
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 	__u16			dsthao;
 #endif
 
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index f3531d0..33b593e 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -61,7 +61,7 @@
 extern int			ipv6_chk_addr(struct in6_addr *addr,
 					      struct net_device *dev,
 					      int strict);
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 extern int			ipv6_chk_home_addr(struct in6_addr *addr);
 #endif
 extern struct inet6_ifaddr *	ipv6_get_ifaddr(struct in6_addr *addr,
diff --git a/include/net/mip6.h b/include/net/mip6.h
index 68263c6..6327261 100644
--- a/include/net/mip6.h
+++ b/include/net/mip6.h
@@ -54,8 +54,4 @@
 #define IP6_MH_TYPE_BERROR	7   /* Binding Error */
 #define IP6_MH_TYPE_MAX		IP6_MH_TYPE_BERROR
 
-extern int mip6_init(void);
-extern void mip6_fini(void);
-extern int mip6_mh_filter(struct sock *sk, struct sk_buff *skb);
-
 #endif
diff --git a/include/net/rawv6.h b/include/net/rawv6.h
index af89608..a581989 100644
--- a/include/net/rawv6.h
+++ b/include/net/rawv6.h
@@ -3,6 +3,8 @@
 
 #ifdef __KERNEL__
 
+#include <net/protocol.h>
+
 #define RAWV6_HTABLE_SIZE	MAX_INET_PROTOS
 extern struct hlist_head raw_v6_htable[RAWV6_HTABLE_SIZE];
 extern rwlock_t raw_v6_lock;
@@ -23,6 +25,13 @@
 					  int type, int code, 
 					  int offset, __be32 info);
 
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+int rawv6_mh_filter_register(int (*filter)(struct sock *sock,
+					   struct sk_buff *skb));
+int rawv6_mh_filter_unregister(int (*filter)(struct sock *sock,
+					     struct sk_buff *skb));
+#endif
+
 #endif
 
 #endif
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 8e5d54f..eb0b808 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -109,7 +109,7 @@
 	  If unsure, say Y.
 
 config IPV6_MIP6
-	bool "IPv6: Mobility (EXPERIMENTAL)"
+	tristate "IPv6: Mobility (EXPERIMENTAL)"
 	depends on IPV6 && EXPERIMENTAL
 	select XFRM
 	---help---
diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile
index bb3330904..87c23a7 100644
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -14,7 +14,6 @@
 	xfrm6_output.o
 ipv6-$(CONFIG_NETFILTER) += netfilter.o
 ipv6-$(CONFIG_IPV6_MULTIPLE_TABLES) += fib6_rules.o
-ipv6-$(CONFIG_IPV6_MIP6) += mip6.o
 ipv6-$(CONFIG_PROC_FS) += proc.o
 
 ipv6-objs += $(ipv6-y)
@@ -28,6 +27,7 @@
 obj-$(CONFIG_INET6_XFRM_MODE_TUNNEL) += xfrm6_mode_tunnel.o
 obj-$(CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION) += xfrm6_mode_ro.o
 obj-$(CONFIG_INET6_XFRM_MODE_BEET) += xfrm6_mode_beet.o
+obj-$(CONFIG_IPV6_MIP6) += mip6.o
 obj-$(CONFIG_NETFILTER)	+= netfilter/
 
 obj-$(CONFIG_IPV6_SIT) += sit.o
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 79b79f3..11c0028 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1034,7 +1034,7 @@
 			}
 
 			/* Rule 4: Prefer home address */
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 			if (hiscore.rule < 4) {
 				if (ifa_result->flags & IFA_F_HOMEADDRESS)
 					hiscore.attrs |= IPV6_SADDR_SCORE_HOA;
@@ -2835,7 +2835,7 @@
 }
 #endif	/* CONFIG_PROC_FS */
 
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 /* Check if address is a home address configured on any interface. */
 int ipv6_chk_home_addr(struct in6_addr *addr)
 {
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 6dd3772..eed0937 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -58,9 +58,6 @@
 #ifdef CONFIG_IPV6_TUNNEL
 #include <net/ip6_tunnel.h>
 #endif
-#ifdef CONFIG_IPV6_MIP6
-#include <net/mip6.h>
-#endif
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -853,9 +850,6 @@
 	ipv6_frag_init();
 	ipv6_nodata_init();
 	ipv6_destopt_init();
-#ifdef CONFIG_IPV6_MIP6
-	mip6_init();
-#endif
 
 	/* Init v6 transport protocols. */
 	udpv6_init();
@@ -921,9 +915,7 @@
 
 	/* Cleanup code parts. */
 	ipv6_packet_cleanup();
-#ifdef CONFIG_IPV6_MIP6
-	mip6_fini();
-#endif
+
 	addrconf_cleanup();
 	ip6_flowlabel_cleanup();
 	ip6_route_cleanup();
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 01fa302..cc6884a 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -74,7 +74,7 @@
 	return 0;
 }
 
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 /**
  *	ipv6_rearrange_destopt - rearrange IPv6 destination options header
  *	@iph: IPv6 header
@@ -228,7 +228,7 @@
 	u8 nexthdr;
 	char tmp_base[8];
 	struct {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 		struct in6_addr saddr;
 #endif
 		struct in6_addr daddr;
@@ -255,7 +255,7 @@
 			err = -ENOMEM;
 			goto error;
 		}
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 		memcpy(tmp_ext, &top_iph->saddr, extlen);
 #else
 		memcpy(tmp_ext, &top_iph->daddr, extlen);
@@ -294,7 +294,7 @@
 
 	memcpy(top_iph, tmp_base, sizeof(tmp_base));
 	if (tmp_ext) {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 		memcpy(&top_iph->saddr, tmp_ext, extlen);
 #else
 		memcpy(&top_iph->daddr, tmp_ext, extlen);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index b1fe7ac..ba1386d 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -658,7 +658,7 @@
 
 			switch (rthdr->type) {
 			case IPV6_SRCRT_TYPE_0:
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 			case IPV6_SRCRT_TYPE_2:
 #endif
 				break;
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 14be0b9..173a4bb 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -42,7 +42,7 @@
 #include <net/ndisc.h>
 #include <net/ip6_route.h>
 #include <net/addrconf.h>
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 #include <net/xfrm.h>
 #endif
 
@@ -90,6 +90,7 @@
  bad:
 	return -1;
 }
+EXPORT_SYMBOL_GPL(ipv6_find_tlv);
 
 /*
  *	Parsing tlv encoded headers.
@@ -196,7 +197,7 @@
   Destination options header.
  *****************************/
 
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 static int ipv6_dest_hao(struct sk_buff **skbp, int optoff)
 {
 	struct sk_buff *skb = *skbp;
@@ -270,7 +271,7 @@
 #endif
 
 static struct tlvtype_proc tlvprocdestopt_lst[] = {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 	{
 		.type	= IPV6_TLV_HAO,
 		.func	= ipv6_dest_hao,
@@ -283,7 +284,7 @@
 {
 	struct sk_buff *skb = *skbp;
 	struct inet6_skb_parm *opt = IP6CB(skb);
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 	__u16 dstbuf;
 #endif
 	struct dst_entry *dst;
@@ -298,7 +299,7 @@
 	}
 
 	opt->lastopt = opt->dst1 = skb_network_header_len(skb);
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 	dstbuf = opt->dst1;
 #endif
 
@@ -308,7 +309,7 @@
 		skb = *skbp;
 		skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
 		opt = IP6CB(skb);
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 		opt->nhoff = dstbuf;
 #else
 		opt->nhoff = opt->dst1;
@@ -427,7 +428,7 @@
 looped_back:
 	if (hdr->segments_left == 0) {
 		switch (hdr->type) {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 		case IPV6_SRCRT_TYPE_2:
 			/* Silently discard type 2 header unless it was
 			 * processed by own
@@ -463,7 +464,7 @@
 			return -1;
 		}
 		break;
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 	case IPV6_SRCRT_TYPE_2:
 		/* Silently discard invalid RTH type 2 */
 		if (hdr->hdrlen != 2 || hdr->segments_left != 1) {
@@ -520,7 +521,7 @@
 	addr += i - 1;
 
 	switch (hdr->type) {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 	case IPV6_SRCRT_TYPE_2:
 		if (xfrm6_input_addr(skb, (xfrm_address_t *)addr,
 				     (xfrm_address_t *)&ipv6_hdr(skb)->saddr,
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index e9bcce9..4765a29 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -272,7 +272,7 @@
 	return 0;
 }
 
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 static void mip6_addr_swap(struct sk_buff *skb)
 {
 	struct ipv6hdr *iph = ipv6_hdr(skb);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 4704b5f..31dafaf 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -543,7 +543,7 @@
 			found_rhdr = 1;
 			break;
 		case NEXTHDR_DEST:
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 			if (ipv6_find_tlv(skb, offset, IPV6_TLV_HAO) >= 0)
 				break;
 #endif
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index aa3d07c..b636c38 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -417,7 +417,7 @@
 			struct ipv6_rt_hdr *rthdr = opt->srcrt;
 			switch (rthdr->type) {
 			case IPV6_SRCRT_TYPE_0:
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 			case IPV6_SRCRT_TYPE_2:
 #endif
 				break;
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index 13b7160..20c78ec 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -30,6 +30,7 @@
 #include <net/sock.h>
 #include <net/ipv6.h>
 #include <net/ip6_checksum.h>
+#include <net/rawv6.h>
 #include <net/xfrm.h>
 #include <net/mip6.h>
 
@@ -86,7 +87,7 @@
 	return len;
 }
 
-int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
+static int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
 {
 	struct ip6_mh *mh;
 
@@ -471,7 +472,7 @@
 	.remote_addr	= mip6_xfrm_addr,
 };
 
-int __init mip6_init(void)
+static int __init mip6_init(void)
 {
 	printk(KERN_INFO "Mobile IPv6\n");
 
@@ -483,18 +484,33 @@
 		printk(KERN_INFO "%s: can't add xfrm type(rthdr)\n", __FUNCTION__);
 		goto mip6_rthdr_xfrm_fail;
 	}
+	if (rawv6_mh_filter_register(mip6_mh_filter) < 0) {
+		printk(KERN_INFO "%s: can't add rawv6 mh filter\n", __FUNCTION__);
+		goto mip6_rawv6_mh_fail;
+	}
+
+
 	return 0;
 
+ mip6_rawv6_mh_fail:
+	xfrm_unregister_type(&mip6_rthdr_type, AF_INET6);
  mip6_rthdr_xfrm_fail:
 	xfrm_unregister_type(&mip6_destopt_type, AF_INET6);
  mip6_destopt_xfrm_fail:
 	return -EAGAIN;
 }
 
-void __exit mip6_fini(void)
+static void __exit mip6_fini(void)
 {
+	if (rawv6_mh_filter_unregister(mip6_mh_filter) < 0)
+		printk(KERN_INFO "%s: can't remove rawv6 mh filter\n", __FUNCTION__);
 	if (xfrm_unregister_type(&mip6_rthdr_type, AF_INET6) < 0)
 		printk(KERN_INFO "%s: can't remove xfrm type(rthdr)\n", __FUNCTION__);
 	if (xfrm_unregister_type(&mip6_destopt_type, AF_INET6) < 0)
 		printk(KERN_INFO "%s: can't remove xfrm type(destopt)\n", __FUNCTION__);
 }
+
+module_init(mip6_init);
+module_exit(mip6_fini);
+
+MODULE_LICENSE("GPL");
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index a22c9c9..aac6aeb 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -49,7 +49,7 @@
 #include <net/udp.h>
 #include <net/inet_common.h>
 #include <net/tcp_states.h>
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 #include <net/mip6.h>
 #endif
 
@@ -137,6 +137,28 @@
 	return 0;
 }
 
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+static int (*mh_filter)(struct sock *sock, struct sk_buff *skb);
+
+int rawv6_mh_filter_register(int (*filter)(struct sock *sock,
+					   struct sk_buff *skb))
+{
+	rcu_assign_pointer(mh_filter, filter);
+	return 0;
+}
+EXPORT_SYMBOL(rawv6_mh_filter_register);
+
+int rawv6_mh_filter_unregister(int (*filter)(struct sock *sock,
+					     struct sk_buff *skb))
+{
+	rcu_assign_pointer(mh_filter, NULL);
+	synchronize_rcu();
+	return 0;
+}
+EXPORT_SYMBOL(rawv6_mh_filter_unregister);
+
+#endif
+
 /*
  *	demultiplex raw sockets.
  *	(should consider queueing the skb in the sock receive_queue
@@ -178,16 +200,22 @@
 		case IPPROTO_ICMPV6:
 			filtered = icmpv6_filter(sk, skb);
 			break;
-#ifdef CONFIG_IPV6_MIP6
+
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 		case IPPROTO_MH:
+		{
 			/* XXX: To validate MH only once for each packet,
 			 * this is placed here. It should be after checking
 			 * xfrm policy, however it doesn't. The checking xfrm
 			 * policy is placed in rawv6_rcv() because it is
 			 * required for each socket.
 			 */
-			filtered = mip6_mh_filter(sk, skb);
+			int (*filter)(struct sock *sock, struct sk_buff *skb);
+
+			filter = rcu_dereference(mh_filter);
+			filtered = filter ? filter(sk, skb) : 0;
 			break;
+		}
 #endif
 		default:
 			filtered = 0;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 1faa2ea..3ec0c47 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -18,7 +18,7 @@
 #include <net/ip.h>
 #include <net/ipv6.h>
 #include <net/ip6_route.h>
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 #include <net/mip6.h>
 #endif
 
@@ -318,7 +318,7 @@
 			fl->proto = nexthdr;
 			return;
 
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 		case IPPROTO_MH:
 			if (pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
 				struct ip6_mh *mh;
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index baa461b..cdadb48 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -65,7 +65,7 @@
 		goto end;
 
 	/* Rule 2: select MIPv6 RO or inbound trigger */
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 	for (i = 0; i < n; i++) {
 		if (src[i] &&
 		    (src[i]->props.mode == XFRM_MODE_ROUTEOPTIMIZATION ||
@@ -130,7 +130,7 @@
 		goto end;
 
 	/* Rule 2: select MIPv6 RO or inbound trigger */
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 	for (i = 0; i < n; i++) {
 		if (src[i] &&
 		    (src[i]->mode == XFRM_MODE_ROUTEOPTIMIZATION ||