diff --git a/share/man/man9/domain.9 b/share/man/man9/domain.9
index 14ae52b04bb7..464274bff994 100644
--- a/share/man/man9/domain.9
+++ b/share/man/man9/domain.9
@@ -26,7 +26,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 7, 2012
+.Dd November 6, 2014
 .Dt DOMAIN 9
 .Os
 .Sh NAME
@@ -82,10 +82,9 @@ struct domain {
 		(void **, int);
 	int	(*dom_rtdetach)		/* clean up routing table */
 		(void **, int);
-	int	dom_rtoffset;		/* an arg to rtattach, in bits */
-	int	dom_maxrtkey;		/* for routing layer */
 	void	*(*dom_ifattach)(struct ifnet *);
 	void	(*dom_ifdetach)(struct ifnet *, void *);
+	int	(*dom_ifmtu)(struct ifnet *);
 					/* af-dependent data on ifnet */
 };
 .Ed
diff --git a/sys/net/route.c b/sys/net/route.c
index 67fb8a875086..23dbedc77319 100644
--- a/sys/net/route.c
+++ b/sys/net/route.c
@@ -264,15 +264,10 @@ vnet_route_init(const void *unused __unused)
 			if (table != 0 && fam != AF_INET6 && fam != AF_INET)
 				break;
 
-			/*
-			 * XXX MRT rtattach will be also called from
-			 * vfs_export.c but the offset will be 0 (only for
-			 * AF_INET and AF_INET6 which don't need it anyhow).
-			 */
 			rnh = rt_tables_get_rnh_ptr(table, fam);
 			if (rnh == NULL)
 				panic("%s: rnh NULL", __func__);
-			dom->dom_rtattach((void **)rnh, dom->dom_rtoffset);
+			dom->dom_rtattach((void **)rnh, 0);
 		}
 	}
 }
diff --git a/sys/netinet/in_proto.c b/sys/netinet/in_proto.c
index 94d29e5be679..0ac91c72bb88 100644
--- a/sys/netinet/in_proto.c
+++ b/sys/netinet/in_proto.c
@@ -365,8 +365,6 @@ struct domain inetdomain = {
 #ifdef VIMAGE
 	.dom_rtdetach =		in_detachhead,
 #endif
-	.dom_rtoffset =		32,
-	.dom_maxrtkey =		sizeof(struct sockaddr_in),
 	.dom_ifattach =		in_domifattach,
 	.dom_ifdetach =		in_domifdetach
 };
diff --git a/sys/netinet6/in6_proto.c b/sys/netinet6/in6_proto.c
index e70a7398f001..1f7b19efbb3f 100644
--- a/sys/netinet6/in6_proto.c
+++ b/sys/netinet6/in6_proto.c
@@ -379,8 +379,6 @@ struct domain inet6domain = {
 #ifdef VIMAGE
 	.dom_rtdetach =		in6_detachhead,
 #endif
-	.dom_rtoffset =		offsetof(struct sockaddr_in6, sin6_addr) << 3,
-	.dom_maxrtkey =		sizeof(struct sockaddr_in6),
 	.dom_ifattach =		in6_domifattach,
 	.dom_ifdetach =		in6_domifdetach,
 	.dom_ifmtu    =		in6_domifmtu
diff --git a/sys/sys/domain.h b/sys/sys/domain.h
index e17ae975c4d8..bacdad143f07 100644
--- a/sys/sys/domain.h
+++ b/sys/sys/domain.h
@@ -60,8 +60,6 @@ struct domain {
 		(void **, int);
 	int	(*dom_rtdetach)		/* clean up routing table */
 		(void **, int);
-	int	dom_rtoffset;		/* an arg to rtattach, in bits */
-	int	dom_maxrtkey;		/* for routing layer */
 	void	*(*dom_ifattach)(struct ifnet *);
 	void	(*dom_ifdetach)(struct ifnet *, void *);
 	int	(*dom_ifmtu)(struct ifnet *);