diff --git a/sys/net/if.c b/sys/net/if.c
index 0c36b4f8ac09..f190bb47d26a 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -2412,7 +2412,6 @@ ifhwioctl(u_long cmd, struct ifnet *ifp, caddr_t data, struct thread *td)
 #ifdef INET6
 	case SIOCSIFPHYADDR_IN6:
 #endif
-	case SIOCSLIFPHYADDR:
 	case SIOCSIFMEDIA:
 	case SIOCSIFGENERIC:
 		error = priv_check(td, PRIV_NET_HWIOCTL);
@@ -2431,7 +2430,6 @@ ifhwioctl(u_long cmd, struct ifnet *ifp, caddr_t data, struct thread *td)
 
 	case SIOCGIFPSRCADDR:
 	case SIOCGIFPDSTADDR:
-	case SIOCGLIFPHYADDR:
 	case SIOCGIFMEDIA:
 	case SIOCGIFGENERIC:
 		if (ifp->if_ioctl == NULL)
diff --git a/sys/net/if.h b/sys/net/if.h
index 3f2094081216..ec49ad4fe807 100644
--- a/sys/net/if.h
+++ b/sys/net/if.h
@@ -497,18 +497,6 @@ struct ifgroupreq {
 #define ifgr_groups	ifgr_ifgru.ifgru_groups
 };
 
-/*
- * Structure for SIOC[AGD]LIFADDR
- */
-struct if_laddrreq {
-	char	iflr_name[IFNAMSIZ];
-	u_int	flags;
-#define	IFLR_PREFIX	0x8000  /* in: prefix given  out: kernel fills id */
-	u_int	prefixlen;         /* in/out */
-	struct	sockaddr_storage addr;   /* in/out */
-	struct	sockaddr_storage dstaddr; /* out */
-};
-
 #endif /* __BSD_VISIBLE */
 
 #ifdef _KERNEL
diff --git a/sys/net/if_gif.c b/sys/net/if_gif.c
index e39c1df5d3c5..10ff5dfa8d42 100644
--- a/sys/net/if_gif.c
+++ b/sys/net/if_gif.c
@@ -710,7 +710,6 @@ gif_ioctl(ifp, cmd, data)
 #ifdef INET6
 	case SIOCSIFPHYADDR_IN6:
 #endif /* INET6 */
-	case SIOCSLIFPHYADDR:
 		switch (cmd) {
 #ifdef INET
 		case SIOCSIFPHYADDR:
@@ -728,12 +727,6 @@ gif_ioctl(ifp, cmd, data)
 				&(((struct in6_aliasreq *)data)->ifra_dstaddr);
 			break;
 #endif
-		case SIOCSLIFPHYADDR:
-			src = (struct sockaddr *)
-				&(((struct if_laddrreq *)data)->addr);
-			dst = (struct sockaddr *)
-				&(((struct if_laddrreq *)data)->dstaddr);
-			break;
 		default:
 			return EINVAL;
 		}
@@ -788,9 +781,6 @@ gif_ioctl(ifp, cmd, data)
 				break;
 			return EAFNOSUPPORT;
 #endif /* INET6 */
-		case SIOCSLIFPHYADDR:
-			/* checks done in the above */
-			break;
 		}
 
 		error = gif_set_tunnel(GIF2IFP(sc), src, dst);
@@ -886,31 +876,6 @@ gif_ioctl(ifp, cmd, data)
 #endif
 		break;
 
-	case SIOCGLIFPHYADDR:
-		if (sc->gif_psrc == NULL || sc->gif_pdst == NULL) {
-			error = EADDRNOTAVAIL;
-			goto bad;
-		}
-
-		/* copy src */
-		src = sc->gif_psrc;
-		dst = (struct sockaddr *)
-			&(((struct if_laddrreq *)data)->addr);
-		size = sizeof(((struct if_laddrreq *)data)->addr);
-		if (src->sa_len > size)
-			return EINVAL;
-		bcopy((caddr_t)src, (caddr_t)dst, src->sa_len);
-
-		/* copy dst */
-		src = sc->gif_pdst;
-		dst = (struct sockaddr *)
-			&(((struct if_laddrreq *)data)->dstaddr);
-		size = sizeof(((struct if_laddrreq *)data)->dstaddr);
-		if (src->sa_len > size)
-			return EINVAL;
-		bcopy((caddr_t)src, (caddr_t)dst, src->sa_len);
-		break;
-
 	case SIOCSIFFLAGS:
 		/* if_ioctl() takes care of it */
 		break;
diff --git a/sys/net/if_gre.c b/sys/net/if_gre.c
index 3176348d265d..9f6a78e48b79 100644
--- a/sys/net/if_gre.c
+++ b/sys/net/if_gre.c
@@ -519,7 +519,6 @@ static int
 gre_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 {
 	struct ifreq *ifr = (struct ifreq *)data;
-	struct if_laddrreq *lifr = (struct if_laddrreq *)data;
 	struct in_aliasreq *aifr = (struct in_aliasreq *)data;
 	struct gre_softc *sc = ifp->if_softc;
 	struct sockaddr_in si;
@@ -734,27 +733,6 @@ gre_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 		sc->g_src = aifr->ifra_addr.sin_addr;
 		sc->g_dst = aifr->ifra_dstaddr.sin_addr;
 		goto recompute;
-	case SIOCSLIFPHYADDR:
-		/*
-		 * XXXRW: Isn't this priv_check() redundant to the ifnet
-		 * layer check?
-		 */
-		if ((error = priv_check(curthread, PRIV_NET_SETIFPHYS)) != 0)
-			break;
-		if (lifr->addr.ss_family != AF_INET ||
-		    lifr->dstaddr.ss_family != AF_INET) {
-			error = EAFNOSUPPORT;
-			break;
-		}
-		if (lifr->addr.ss_len != sizeof(si) ||
-		    lifr->dstaddr.ss_len != sizeof(si)) {
-			error = EINVAL;
-			break;
-		}
-		sc->g_src = (satosin(&lifr->addr))->sin_addr;
-		sc->g_dst =
-		    (satosin(&lifr->dstaddr))->sin_addr;
-		goto recompute;
 	case SIOCDIFPHYADDR:
 		/*
 		 * XXXRW: Isn't this priv_check() redundant to the ifnet
@@ -765,26 +743,6 @@ gre_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 		sc->g_src.s_addr = INADDR_ANY;
 		sc->g_dst.s_addr = INADDR_ANY;
 		goto recompute;
-	case SIOCGLIFPHYADDR:
-		if (sc->g_src.s_addr == INADDR_ANY ||
-		    sc->g_dst.s_addr == INADDR_ANY) {
-			error = EADDRNOTAVAIL;
-			break;
-		}
-		memset(&si, 0, sizeof(si));
-		si.sin_family = AF_INET;
-		si.sin_len = sizeof(struct sockaddr_in);
-		si.sin_addr.s_addr = sc->g_src.s_addr;
-		error = prison_if(curthread->td_ucred, (struct sockaddr *)&si);
-		if (error != 0)
-			break;
-		memcpy(&lifr->addr, &si, sizeof(si));
-		si.sin_addr.s_addr = sc->g_dst.s_addr;
-		error = prison_if(curthread->td_ucred, (struct sockaddr *)&si);
-		if (error != 0)
-			break;
-		memcpy(&lifr->dstaddr, &si, sizeof(si));
-		break;
 	case SIOCGIFPSRCADDR:
 #ifdef INET6
 	case SIOCGIFPSRCADDR_IN6:
diff --git a/sys/netinet/in.c b/sys/netinet/in.c
index 94314cae95fb..7689a74effec 100644
--- a/sys/netinet/in.c
+++ b/sys/netinet/in.c
@@ -68,10 +68,6 @@ __FBSDID("$FreeBSD$");
 #include <netinet/udp.h>
 #include <netinet/udp_var.h>
 
-static int in_mask2len(struct in_addr *);
-static void in_len2mask(struct in_addr *, int);
-static int in_lifaddr_ioctl(struct socket *, u_long, caddr_t,
-	struct ifnet *, struct thread *);
 static int in_aifaddr_ioctl(u_long, caddr_t, struct ifnet *, struct thread *);
 static int in_difaddr_ioctl(caddr_t, struct ifnet *, struct thread *);
 
@@ -192,42 +188,6 @@ in_socktrim(struct sockaddr_in *ap)
 	}
 }
 
-static int
-in_mask2len(mask)
-	struct in_addr *mask;
-{
-	int x, y;
-	u_char *p;
-
-	p = (u_char *)mask;
-	for (x = 0; x < sizeof(*mask); x++) {
-		if (p[x] != 0xff)
-			break;
-	}
-	y = 0;
-	if (x < sizeof(*mask)) {
-		for (y = 0; y < 8; y++) {
-			if ((p[x] & (0x80 >> y)) == 0)
-				break;
-		}
-	}
-	return (x * 8 + y);
-}
-
-static void
-in_len2mask(struct in_addr *mask, int len)
-{
-	int i;
-	u_char *p;
-
-	p = (u_char *)mask;
-	bzero(mask, sizeof(*mask));
-	for (i = 0; i < len / 8; i++)
-		p[i] = 0xff;
-	if (len % 8)
-		p[i] = (0xff00 >> (len % 8)) & 0xff;
-}
-
 /*
  * Generic internet control operations (ioctl's).
  */
@@ -265,10 +225,6 @@ in_control(struct socket *so, u_long cmd, caddr_t data, struct ifnet *ifp,
 		error = in_aifaddr_ioctl(cmd, data, ifp, td);
 		sx_xunlock(&in_control_sx);
 		return (error);
-	case SIOCALIFADDR:
-	case SIOCDLIFADDR:
-	case SIOCGLIFADDR:
-		return (in_lifaddr_ioctl(so, cmd, data, ifp, td));
 	case SIOCSIFADDR:
 	case SIOCSIFBRDADDR:
 	case SIOCSIFDSTADDR:
@@ -643,194 +599,6 @@ in_difaddr_ioctl(caddr_t data, struct ifnet *ifp, struct thread *td)
 	return (0);
 }
 
-/*
- * SIOC[GAD]LIFADDR.
- *	SIOCGLIFADDR: get first address. (?!?)
- *	SIOCGLIFADDR with IFLR_PREFIX:
- *		get first address that matches the specified prefix.
- *	SIOCALIFADDR: add the specified address.
- *	SIOCALIFADDR with IFLR_PREFIX:
- *		EINVAL since we can't deduce hostid part of the address.
- *	SIOCDLIFADDR: delete the specified address.
- *	SIOCDLIFADDR with IFLR_PREFIX:
- *		delete the first address that matches the specified prefix.
- * return values:
- *	EINVAL on invalid parameters
- *	EADDRNOTAVAIL on prefix match failed/specified address not found
- *	other values may be returned from in_ioctl()
- */
-static int
-in_lifaddr_ioctl(struct socket *so, u_long cmd, caddr_t data,
-    struct ifnet *ifp, struct thread *td)
-{
-	struct if_laddrreq *iflr = (struct if_laddrreq *)data;
-	struct ifaddr *ifa;
-	int error;
-
-	switch (cmd) {
-	case SIOCALIFADDR:
-		if (td != NULL) {
-			error = priv_check(td, PRIV_NET_ADDIFADDR);
-			if (error)
-				return (error);
-		}
-		break;
-	case SIOCDLIFADDR:
-		if (td != NULL) {
-			error = priv_check(td, PRIV_NET_DELIFADDR);
-			if (error)
-				return (error);
-		}
-		break;
-	}
-
-	switch (cmd) {
-	case SIOCGLIFADDR:
-		/* address must be specified on GET with IFLR_PREFIX */
-		if ((iflr->flags & IFLR_PREFIX) == 0)
-			break;
-		/*FALLTHROUGH*/
-	case SIOCALIFADDR:
-	case SIOCDLIFADDR:
-		/* address must be specified on ADD and DELETE */
-		if (iflr->addr.ss_family != AF_INET)
-			return (EINVAL);
-		if (iflr->addr.ss_len != sizeof(struct sockaddr_in))
-			return (EINVAL);
-		/* XXX need improvement */
-		if (iflr->dstaddr.ss_family
-		 && iflr->dstaddr.ss_family != AF_INET)
-			return (EINVAL);
-		if (iflr->dstaddr.ss_family
-		 && iflr->dstaddr.ss_len != sizeof(struct sockaddr_in))
-			return (EINVAL);
-		break;
-	default: /*shouldn't happen*/
-		return (EOPNOTSUPP);
-	}
-	if (sizeof(struct in_addr) * 8 < iflr->prefixlen)
-		return (EINVAL);
-
-	switch (cmd) {
-	case SIOCALIFADDR:
-	    {
-		struct in_aliasreq ifra;
-
-		if (iflr->flags & IFLR_PREFIX)
-			return (EINVAL);
-
-		/* copy args to in_aliasreq, perform ioctl(SIOCAIFADDR). */
-		bzero(&ifra, sizeof(ifra));
-		bcopy(iflr->iflr_name, ifra.ifra_name,
-			sizeof(ifra.ifra_name));
-
-		bcopy(&iflr->addr, &ifra.ifra_addr, iflr->addr.ss_len);
-
-		if (iflr->dstaddr.ss_family) {	/*XXX*/
-			bcopy(&iflr->dstaddr, &ifra.ifra_dstaddr,
-				iflr->dstaddr.ss_len);
-		}
-
-		ifra.ifra_mask.sin_family = AF_INET;
-		ifra.ifra_mask.sin_len = sizeof(struct sockaddr_in);
-		in_len2mask(&ifra.ifra_mask.sin_addr, iflr->prefixlen);
-
-		return (in_control(so, SIOCAIFADDR, (caddr_t)&ifra, ifp, td));
-	    }
-	case SIOCGLIFADDR:
-	case SIOCDLIFADDR:
-	    {
-		struct in_ifaddr *ia;
-		struct in_addr mask, candidate, match;
-		struct sockaddr_in *sin;
-
-		bzero(&mask, sizeof(mask));
-		bzero(&match, sizeof(match));
-		if (iflr->flags & IFLR_PREFIX) {
-			/* lookup a prefix rather than address. */
-			in_len2mask(&mask, iflr->prefixlen);
-
-			sin = (struct sockaddr_in *)&iflr->addr;
-			match.s_addr = sin->sin_addr.s_addr;
-			match.s_addr &= mask.s_addr;
-
-			/* if you set extra bits, that's wrong */
-			if (match.s_addr != sin->sin_addr.s_addr)
-				return (EINVAL);
-
-		} else {
-			/* on getting an address, take the 1st match */
-			/* on deleting an address, do exact match */
-			if (cmd != SIOCGLIFADDR) {
-				in_len2mask(&mask, 32);
-				sin = (struct sockaddr_in *)&iflr->addr;
-				match.s_addr = sin->sin_addr.s_addr;
-			}
-		}
-
-		IF_ADDR_RLOCK(ifp);
-		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)	{
-			if (ifa->ifa_addr->sa_family != AF_INET)
-				continue;
-			if (match.s_addr == 0)
-				break;
-			sin = (struct sockaddr_in *)&ifa->ifa_addr;
-			candidate.s_addr = sin->sin_addr.s_addr;
-			candidate.s_addr &= mask.s_addr;
-			if (candidate.s_addr == match.s_addr)
-				break;
-		}
-		if (ifa != NULL)
-			ifa_ref(ifa);
-		IF_ADDR_RUNLOCK(ifp);
-		if (ifa == NULL)
-			return (EADDRNOTAVAIL);
-		ia = (struct in_ifaddr *)ifa;
-
-		if (cmd == SIOCGLIFADDR) {
-			/* fill in the if_laddrreq structure */
-			bcopy(&ia->ia_addr, &iflr->addr, ia->ia_addr.sin_len);
-
-			if ((ifp->if_flags & IFF_POINTOPOINT) != 0) {
-				bcopy(&ia->ia_dstaddr, &iflr->dstaddr,
-					ia->ia_dstaddr.sin_len);
-			} else
-				bzero(&iflr->dstaddr, sizeof(iflr->dstaddr));
-
-			iflr->prefixlen =
-				in_mask2len(&ia->ia_sockmask.sin_addr);
-
-			iflr->flags = 0;	/*XXX*/
-			ifa_free(ifa);
-
-			return (0);
-		} else {
-			struct in_aliasreq ifra;
-
-			/* fill in_aliasreq and do ioctl(SIOCDIFADDR) */
-			bzero(&ifra, sizeof(ifra));
-			bcopy(iflr->iflr_name, ifra.ifra_name,
-				sizeof(ifra.ifra_name));
-
-			bcopy(&ia->ia_addr, &ifra.ifra_addr,
-				ia->ia_addr.sin_len);
-			if ((ifp->if_flags & IFF_POINTOPOINT) != 0) {
-				bcopy(&ia->ia_dstaddr, &ifra.ifra_dstaddr,
-					ia->ia_dstaddr.sin_len);
-			}
-			bcopy(&ia->ia_sockmask, &ifra.ifra_dstaddr,
-				ia->ia_sockmask.sin_len);
-			ifa_free(ifa);
-
-			return (in_control(so, SIOCDIFADDR, (caddr_t)&ifra,
-			    ifp, td));
-		}
-	    }
-	}
-
-	return (EOPNOTSUPP);	/*just for safety*/
-}
-
 #define rtinitflags(x) \
 	((((x)->ia_ifp->if_flags & (IFF_LOOPBACK | IFF_POINTOPOINT)) != 0) \
 	    ? RTF_HOST : 0)
diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c
index f59e9e4962cd..fbd2e0f091d5 100644
--- a/sys/netinet6/in6.c
+++ b/sys/netinet6/in6.c
@@ -133,8 +133,6 @@ const struct in6_addr in6mask128 = IN6MASK128;
 const struct sockaddr_in6 sa6_any =
 	{ sizeof(sa6_any), AF_INET6, 0, 0, IN6ADDR_ANY_INIT, 0 };
 
-static int in6_lifaddr_ioctl(struct socket *, u_long, caddr_t,
-	struct ifnet *, struct thread *);
 static int in6_ifinit(struct ifnet *, struct in6_ifaddr *,
 	struct sockaddr_in6 *, int);
 static void in6_unlink_ifa(struct in6_ifaddr *, struct ifnet *);
@@ -376,26 +374,6 @@ in6_control(struct socket *so, u_long cmd, caddr_t data,
 		    ifr->ifr_ifru.ifru_scope_id));
 	}
 
-	switch (cmd) {
-	case SIOCALIFADDR:
-		if (td != NULL) {
-			error = priv_check(td, PRIV_NET_ADDIFADDR);
-			if (error)
-				return (error);
-		}
-		return in6_lifaddr_ioctl(so, cmd, data, ifp, td);
-
-	case SIOCDLIFADDR:
-		if (td != NULL) {
-			error = priv_check(td, PRIV_NET_DELIFADDR);
-			if (error)
-				return (error);
-		}
-		/* FALLTHROUGH */
-	case SIOCGLIFADDR:
-		return in6_lifaddr_ioctl(so, cmd, data, ifp, td);
-	}
-
 	/*
 	 * Find address for this interface, if it exists.
 	 *
@@ -1600,277 +1578,6 @@ in6_purgeif(struct ifnet *ifp)
 	in6_ifdetach(ifp);
 }
 
-/*
- * SIOC[GAD]LIFADDR.
- *	SIOCGLIFADDR: get first address. (?)
- *	SIOCGLIFADDR with IFLR_PREFIX:
- *		get first address that matches the specified prefix.
- *	SIOCALIFADDR: add the specified address.
- *	SIOCALIFADDR with IFLR_PREFIX:
- *		add the specified prefix, filling hostid part from
- *		the first link-local address.  prefixlen must be <= 64.
- *	SIOCDLIFADDR: delete the specified address.
- *	SIOCDLIFADDR with IFLR_PREFIX:
- *		delete the first address that matches the specified prefix.
- * return values:
- *	EINVAL on invalid parameters
- *	EADDRNOTAVAIL on prefix match failed/specified address not found
- *	other values may be returned from in6_ioctl()
- *
- * NOTE: SIOCALIFADDR(with IFLR_PREFIX set) allows prefixlen less than 64.
- * this is to accomodate address naming scheme other than RFC2374,
- * in the future.
- * RFC2373 defines interface id to be 64bit, but it allows non-RFC2374
- * address encoding scheme. (see figure on page 8)
- */
-static int
-in6_lifaddr_ioctl(struct socket *so, u_long cmd, caddr_t data,
-    struct ifnet *ifp, struct thread *td)
-{
-	struct if_laddrreq *iflr = (struct if_laddrreq *)data;
-	struct ifaddr *ifa;
-	struct sockaddr *sa;
-
-	/* sanity checks */
-	if (!data || !ifp) {
-		panic("invalid argument to in6_lifaddr_ioctl");
-		/* NOTREACHED */
-	}
-
-	switch (cmd) {
-	case SIOCGLIFADDR:
-		/* address must be specified on GET with IFLR_PREFIX */
-		if ((iflr->flags & IFLR_PREFIX) == 0)
-			break;
-		/* FALLTHROUGH */
-	case SIOCALIFADDR:
-	case SIOCDLIFADDR:
-		/* address must be specified on ADD and DELETE */
-		sa = (struct sockaddr *)&iflr->addr;
-		if (sa->sa_family != AF_INET6)
-			return EINVAL;
-		if (sa->sa_len != sizeof(struct sockaddr_in6))
-			return EINVAL;
-		/* XXX need improvement */
-		sa = (struct sockaddr *)&iflr->dstaddr;
-		if (sa->sa_family && sa->sa_family != AF_INET6)
-			return EINVAL;
-		if (sa->sa_len && sa->sa_len != sizeof(struct sockaddr_in6))
-			return EINVAL;
-		break;
-	default: /* shouldn't happen */
-#if 0
-		panic("invalid cmd to in6_lifaddr_ioctl");
-		/* NOTREACHED */
-#else
-		return EOPNOTSUPP;
-#endif
-	}
-	if (sizeof(struct in6_addr) * 8 < iflr->prefixlen)
-		return EINVAL;
-
-	switch (cmd) {
-	case SIOCALIFADDR:
-	    {
-		struct in6_aliasreq ifra;
-		struct in6_addr *hostid = NULL;
-		int prefixlen;
-
-		ifa = NULL;
-		if ((iflr->flags & IFLR_PREFIX) != 0) {
-			struct sockaddr_in6 *sin6;
-
-			/*
-			 * hostid is to fill in the hostid part of the
-			 * address.  hostid points to the first link-local
-			 * address attached to the interface.
-			 */
-			ifa = (struct ifaddr *)in6ifa_ifpforlinklocal(ifp, 0);
-			if (!ifa)
-				return EADDRNOTAVAIL;
-			hostid = IFA_IN6(ifa);
-
-			/* prefixlen must be <= 64. */
-			if (64 < iflr->prefixlen) {
-				if (ifa != NULL)
-					ifa_free(ifa);
-				return EINVAL;
-			}
-			prefixlen = iflr->prefixlen;
-
-			/* hostid part must be zero. */
-			sin6 = (struct sockaddr_in6 *)&iflr->addr;
-			if (sin6->sin6_addr.s6_addr32[2] != 0 ||
-			    sin6->sin6_addr.s6_addr32[3] != 0) {
-				if (ifa != NULL)
-					ifa_free(ifa);
-				return EINVAL;
-			}
-		} else
-			prefixlen = iflr->prefixlen;
-
-		/* copy args to in6_aliasreq, perform ioctl(SIOCAIFADDR_IN6). */
-		bzero(&ifra, sizeof(ifra));
-		bcopy(iflr->iflr_name, ifra.ifra_name, sizeof(ifra.ifra_name));
-
-		bcopy(&iflr->addr, &ifra.ifra_addr,
-		    ((struct sockaddr *)&iflr->addr)->sa_len);
-		if (hostid) {
-			/* fill in hostid part */
-			ifra.ifra_addr.sin6_addr.s6_addr32[2] =
-			    hostid->s6_addr32[2];
-			ifra.ifra_addr.sin6_addr.s6_addr32[3] =
-			    hostid->s6_addr32[3];
-		}
-
-		if (((struct sockaddr *)&iflr->dstaddr)->sa_family) { /* XXX */
-			bcopy(&iflr->dstaddr, &ifra.ifra_dstaddr,
-			    ((struct sockaddr *)&iflr->dstaddr)->sa_len);
-			if (hostid) {
-				ifra.ifra_dstaddr.sin6_addr.s6_addr32[2] =
-				    hostid->s6_addr32[2];
-				ifra.ifra_dstaddr.sin6_addr.s6_addr32[3] =
-				    hostid->s6_addr32[3];
-			}
-		}
-		if (ifa != NULL)
-			ifa_free(ifa);
-
-		ifra.ifra_prefixmask.sin6_len = sizeof(struct sockaddr_in6);
-		in6_prefixlen2mask(&ifra.ifra_prefixmask.sin6_addr, prefixlen);
-
-		ifra.ifra_flags = iflr->flags & ~IFLR_PREFIX;
-		return in6_control(so, SIOCAIFADDR_IN6, (caddr_t)&ifra, ifp, td);
-	    }
-	case SIOCGLIFADDR:
-	case SIOCDLIFADDR:
-	    {
-		struct in6_ifaddr *ia;
-		struct in6_addr mask, candidate, match;
-		struct sockaddr_in6 *sin6;
-		int cmp;
-
-		bzero(&mask, sizeof(mask));
-		if (iflr->flags & IFLR_PREFIX) {
-			/* lookup a prefix rather than address. */
-			in6_prefixlen2mask(&mask, iflr->prefixlen);
-
-			sin6 = (struct sockaddr_in6 *)&iflr->addr;
-			bcopy(&sin6->sin6_addr, &match, sizeof(match));
-			match.s6_addr32[0] &= mask.s6_addr32[0];
-			match.s6_addr32[1] &= mask.s6_addr32[1];
-			match.s6_addr32[2] &= mask.s6_addr32[2];
-			match.s6_addr32[3] &= mask.s6_addr32[3];
-
-			/* if you set extra bits, that's wrong */
-			if (bcmp(&match, &sin6->sin6_addr, sizeof(match)))
-				return EINVAL;
-
-			cmp = 1;
-		} else {
-			if (cmd == SIOCGLIFADDR) {
-				/* on getting an address, take the 1st match */
-				cmp = 0;	/* XXX */
-			} else {
-				/* on deleting an address, do exact match */
-				in6_prefixlen2mask(&mask, 128);
-				sin6 = (struct sockaddr_in6 *)&iflr->addr;
-				bcopy(&sin6->sin6_addr, &match, sizeof(match));
-
-				cmp = 1;
-			}
-		}
-
-		IF_ADDR_RLOCK(ifp);
-		TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
-			if (ifa->ifa_addr->sa_family != AF_INET6)
-				continue;
-			if (!cmp)
-				break;
-
-			/*
-			 * XXX: this is adhoc, but is necessary to allow
-			 * a user to specify fe80::/64 (not /10) for a
-			 * link-local address.
-			 */
-			bcopy(IFA_IN6(ifa), &candidate, sizeof(candidate));
-			in6_clearscope(&candidate);
-			candidate.s6_addr32[0] &= mask.s6_addr32[0];
-			candidate.s6_addr32[1] &= mask.s6_addr32[1];
-			candidate.s6_addr32[2] &= mask.s6_addr32[2];
-			candidate.s6_addr32[3] &= mask.s6_addr32[3];
-			if (IN6_ARE_ADDR_EQUAL(&candidate, &match))
-				break;
-		}
-		if (ifa != NULL)
-			ifa_ref(ifa);
-		IF_ADDR_RUNLOCK(ifp);
-		if (!ifa)
-			return EADDRNOTAVAIL;
-		ia = ifa2ia6(ifa);
-
-		if (cmd == SIOCGLIFADDR) {
-			int error;
-
-			/* fill in the if_laddrreq structure */
-			bcopy(&ia->ia_addr, &iflr->addr, ia->ia_addr.sin6_len);
-			error = sa6_recoverscope(
-			    (struct sockaddr_in6 *)&iflr->addr);
-			if (error != 0) {
-				ifa_free(ifa);
-				return (error);
-			}
-
-			if ((ifp->if_flags & IFF_POINTOPOINT) != 0) {
-				bcopy(&ia->ia_dstaddr, &iflr->dstaddr,
-				    ia->ia_dstaddr.sin6_len);
-				error = sa6_recoverscope(
-				    (struct sockaddr_in6 *)&iflr->dstaddr);
-				if (error != 0) {
-					ifa_free(ifa);
-					return (error);
-				}
-			} else
-				bzero(&iflr->dstaddr, sizeof(iflr->dstaddr));
-
-			iflr->prefixlen =
-			    in6_mask2len(&ia->ia_prefixmask.sin6_addr, NULL);
-
-			iflr->flags = ia->ia6_flags;	/* XXX */
-			ifa_free(ifa);
-
-			return 0;
-		} else {
-			struct in6_aliasreq ifra;
-
-			/* fill in6_aliasreq and do ioctl(SIOCDIFADDR_IN6) */
-			bzero(&ifra, sizeof(ifra));
-			bcopy(iflr->iflr_name, ifra.ifra_name,
-			    sizeof(ifra.ifra_name));
-
-			bcopy(&ia->ia_addr, &ifra.ifra_addr,
-			    ia->ia_addr.sin6_len);
-			if ((ifp->if_flags & IFF_POINTOPOINT) != 0) {
-				bcopy(&ia->ia_dstaddr, &ifra.ifra_dstaddr,
-				    ia->ia_dstaddr.sin6_len);
-			} else {
-				bzero(&ifra.ifra_dstaddr,
-				    sizeof(ifra.ifra_dstaddr));
-			}
-			bcopy(&ia->ia_prefixmask, &ifra.ifra_dstaddr,
-			    ia->ia_prefixmask.sin6_len);
-
-			ifra.ifra_flags = ia->ia6_flags;
-			ifa_free(ifa);
-			return in6_control(so, SIOCDIFADDR_IN6, (caddr_t)&ifra,
-			    ifp, td);
-		}
-	    }
-	}
-
-	return EOPNOTSUPP;	/* just for safety */
-}
-
 /*
  * Initialize an interface's IPv6 address and routing table entry.
  */
diff --git a/sys/sys/sockio.h b/sys/sys/sockio.h
index 388ace332e4a..a09c11f6b00c 100644
--- a/sys/sys/sockio.h
+++ b/sys/sys/sockio.h
@@ -69,9 +69,9 @@
 #define	SIOCSIFMETRIC	 _IOW('i', 24, struct ifreq)	/* set IF metric */
 #define	SIOCDIFADDR	 _IOW('i', 25, struct ifreq)	/* delete IF addr */
 #define	OSIOCAIFADDR	 _IOW('i', 26, struct oifaliasreq) /* FreeBSD 9.x */
-#define	SIOCALIFADDR	 _IOW('i', 27, struct if_laddrreq) /* add IF addr */
-#define	SIOCGLIFADDR	_IOWR('i', 28, struct if_laddrreq) /* get IF addr */
-#define	SIOCDLIFADDR	 _IOW('i', 29, struct if_laddrreq) /* delete IF addr */
+/*	SIOCALIFADDR	 _IOW('i', 27, struct if_laddrreq) KAME */
+/*	SIOCGLIFADDR	_IOWR('i', 28, struct if_laddrreq) KAME */
+/*	SIOCDLIFADDR	 _IOW('i', 29, struct if_laddrreq) KAME */
 #define	SIOCSIFCAP	 _IOW('i', 30, struct ifreq)	/* set IF features */
 #define	SIOCGIFCAP	_IOWR('i', 31, struct ifreq)	/* get IF features */
 #define	SIOCGIFINDEX	_IOWR('i', 32, struct ifreq)	/* get IF index */
@@ -101,8 +101,8 @@
 #define	SIOCGIFPSRCADDR	_IOWR('i', 71, struct ifreq)	/* get gif psrc addr */
 #define	SIOCGIFPDSTADDR	_IOWR('i', 72, struct ifreq)	/* get gif pdst addr */
 #define	SIOCDIFPHYADDR	 _IOW('i', 73, struct ifreq)	/* delete gif addrs */
-#define	SIOCSLIFPHYADDR	 _IOW('i', 74, struct if_laddrreq) /* set gif addrs */
-#define	SIOCGLIFPHYADDR	_IOWR('i', 75, struct if_laddrreq) /* get gif addrs */
+/*	SIOCSLIFPHYADDR	 _IOW('i', 74, struct if_laddrreq) KAME */
+/*	SIOCGLIFPHYADDR	_IOWR('i', 75, struct if_laddrreq) KAME */
 
 #define	SIOCGPRIVATE_0	_IOWR('i', 80, struct ifreq)	/* device private 0 */
 #define	SIOCGPRIVATE_1	_IOWR('i', 81, struct ifreq)	/* device private 1 */