diff --git a/TODO b/TODO
index 8045604d..1544345f 100644
--- a/TODO
+++ b/TODO
@@ -14,6 +14,7 @@ Core
 - static: check validity of route destination?
 
 - device: configuration of interface patterns
+- device: what to do if we need to shut down this protocol?
 
 - adding of route: check whether all bits not covered by masklen are zero
 
diff --git a/doc/bird.conf.example b/doc/bird.conf.example
index 15fd8449..9f5907d4 100644
--- a/doc/bird.conf.example
+++ b/doc/bird.conf.example
@@ -24,6 +24,7 @@ protocol kernel {
 	persist			# Don't remove routes on bird shutdown
 	scan time 10		# Scan kernel tables every 10 seconds
 	route scan time 20	# But routes only every 20 seconds
+#	async off		# Netlink: Disable asynchronous events
 }
 
 protocol static {
diff --git a/sysdep/cf/linux-20.h b/sysdep/cf/linux-20.h
index 807ddcd6..e514218f 100644
--- a/sysdep/cf/linux-20.h
+++ b/sysdep/cf/linux-20.h
@@ -12,6 +12,10 @@
 #undef CONFIG_AUTO_ROUTES
 #define CONFIG_ALL_MULTICAST
 
+#define CONFIG_UNIX_IFACE
+#define CONFIG_UNIX_SET
+#define CONFIG_LINUX_SCAN
+
 /*
 Link: sysdep/linux
 Link: sysdep/unix
diff --git a/sysdep/linux/Modules b/sysdep/linux/Modules
index 03d032d9..4a99916a 100644
--- a/sysdep/linux/Modules
+++ b/sysdep/linux/Modules
@@ -1,5 +1,4 @@
-#ifndef CONFIG_NETLINK
+#ifdef CONFIG_LINUX_SCAN
 krt-scan.c
 krt-scan.h
-krt-scan.Y
 #endif
diff --git a/sysdep/linux/krt-scan.Y b/sysdep/linux/krt-scan.Y
deleted file mode 100644
index 58339895..00000000
--- a/sysdep/linux/krt-scan.Y
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- *	BIRD -- Linux Kernel Syncer Configuration
- *
- *	(c) 1998 Martin Mares <mj@ucw.cz>
- *
- *	Can be freely distributed and used under the terms of the GNU GPL.
- */
-
-CF_HDR
-
-#include "lib/krt-scan.h"
-
-CF_DECLS
-
-CF_KEYWORDS(LEARN, ROUTE, SCAN, TIME)
-
-CF_GRAMMAR
-
-CF_ADDTO(kern_proto, kern_proto krt_scan_item ';')
-
-krt_scan_item:
-   LEARN bool {
-      ((struct krt_config *) this_proto)->scanopt.learn = $2;
-   }
- | ROUTE SCAN TIME expr {
-      /* Scan time of 0 means scan on startup only */
-      ((struct krt_config *) this_proto)->scanopt.scan_time = $4;
-   }
- ;
-
-CF_CODE
-
-CF_END
diff --git a/sysdep/linux/krt-scan.c b/sysdep/linux/krt-scan.c
index 1428a7ac..3e5a2401 100644
--- a/sysdep/linux/krt-scan.c
+++ b/sysdep/linux/krt-scan.c
@@ -23,60 +23,34 @@
 #include "lib/unix.h"
 #include "lib/krt.h"
 
-#define SCANOPT struct krt_scan_params *p = &(((struct krt_config *)(x->p.cf))->scanopt)
-#define SCANSTAT struct krt_scan_status *s = &x->scanstat
-
 static int krt_scan_fd = -1;
 
-/* FIXME: Filtering */
-
 struct iface *
-krt_temp_iface(struct krt_proto *x, char *name)
+krt_temp_iface(struct krt_proto *p, char *name)
 {
-  SCANOPT;
-  SCANSTAT;
   struct iface *i;
 
-  WALK_LIST(i, s->temp_ifs)
+  WALK_LIST(i, p->scan.temp_ifs)
     if (!strcmp(i->name, name))
       return i;
-  i = mb_alloc(x->p.pool, sizeof(struct iface));
+  i = mb_alloc(p->p.pool, sizeof(struct iface));
   bzero(i, sizeof(*i));
   strcpy(i->name, name);
-  add_tail(&s->temp_ifs, &i->n);
+  add_tail(&p->scan.temp_ifs, &i->n);
   return i;
 }
 
-static int
-krt_uptodate(rte *k, rte *e)
-{
-  rta *ka = k->attrs, *ea = e->attrs;
-
-  if (ka->dest != ea->dest)
-    return 0;
-  switch (ka->dest)
-    {
-    case RTD_ROUTER:
-      return ipa_equal(ka->gw, ea->gw);
-    case RTD_DEVICE:
-      return !strcmp(ka->iface->name, ea->iface->name);
-    default:
-      return 1;
-    }
-}
-
 static void
-krt_parse_entry(byte *ent, struct krt_proto *x)
+krt_parse_entry(byte *ent, struct krt_proto *p)
 {
-  SCANOPT;
   u32 dest0, gw0, mask0;
   ip_addr dest, gw, mask;
-  unsigned int flags, verdict;
+  unsigned int flags;
   int masklen;
   net *net;
   byte *iface = ent;
   rta a;
-  rte *e, *old;
+  rte *e;
 
   if (sscanf(ent, "%*s\t%x\t%x\t%x\t%*d\t%*d\t%*d\t%x\t", &dest0, &gw0, &flags, &mask0) != 4)
     {
@@ -114,14 +88,8 @@ krt_parse_entry(byte *ent, struct krt_proto *x)
     }
 
   net = net_get(&master_table, 0, dest, masklen);
-  if (net->n.flags)
-    {
-      /* Route to this destination was already seen. Strange, but it happens... */
-      DBG("Already seen.\n");
-      return;
-    }
 
-  a.proto = &x->p;
+  a.proto = &p->p;
   a.source = RTS_INHERIT;
   a.scope = SCOPE_UNIVERSE;
   a.cast = RTC_UNICAST;
@@ -132,7 +100,7 @@ krt_parse_entry(byte *ent, struct krt_proto *x)
 
   if (flags & RTF_GATEWAY)
     {
-      neighbor *ng = neigh_find(&x->p, &gw, 0);
+      neighbor *ng = neigh_find(&p->p, &gw, 0);
       if (ng)
 	a.iface = ng->iface;
       else
@@ -150,7 +118,7 @@ krt_parse_entry(byte *ent, struct krt_proto *x)
     {
       a.dest = RTD_DEVICE;
       a.gw = IPA_NONE;
-      a.iface = krt_temp_iface(x, iface);
+      a.iface = krt_temp_iface(p, iface);
     }
   else
     {
@@ -160,43 +128,15 @@ krt_parse_entry(byte *ent, struct krt_proto *x)
 
   e = rte_get_temp(&a);
   e->net = net;
-  old = net->routes;
-  if (old && !krt_capable(old))
-    old = NULL;
-  if (old)
-    {
-      if (krt_uptodate(e, net->routes))
-	verdict = KRF_SEEN;
-      else
-	verdict = KRF_UPDATE;
-    }
-  else if (p->learn && !net->routes)
-    verdict = KRF_LEARN;
-  else
-    verdict = KRF_DELETE;
-
-  DBG("krt_parse_entry: verdict=%s\n", ((char *[]) { "CREATE", "SEEN", "UPDATE", "DELETE", "LEARN" }) [verdict]);
-
-  net->n.flags = verdict;
-  if (verdict != KRF_SEEN)
-    {
-      /* Get a cached copy of attributes and link the route */
-      a.source = RTS_DUMMY;
-      e->attrs = rta_lookup(&a);
-      e->next = net->routes;
-      net->routes = e;
-    }
-  else
-    rte_free(e);
+  krt_got_route(p, e);
 }
 
-static int
-krt_scan_proc(struct krt_proto *p)
+void
+krt_scan_fire(struct krt_proto *p)
 {
   byte buf[32768];
   int l, seen_hdr;
 
-  DBG("Scanning kernel routing table...\n");
   if (krt_scan_fd < 0)
     {
       krt_scan_fd = open("/proc/net/route", O_RDONLY);
@@ -206,7 +146,7 @@ krt_scan_proc(struct krt_proto *p)
   else if (lseek(krt_scan_fd, 0, SEEK_SET) < 0)
     {
       log(L_ERR "krt seek: %m");
-      return 0;
+      return;
     }
   seen_hdr = 0;
   while ((l = read(krt_scan_fd, buf, sizeof(buf))) > 0)
@@ -215,7 +155,7 @@ krt_scan_proc(struct krt_proto *p)
       if (l & 127)
 	{
 	  log(L_ERR "krt read: misaligned entry: l=%d", l);
-	  return 0;
+	  return;
 	}
       while (l >= 128)
 	{
@@ -228,114 +168,20 @@ krt_scan_proc(struct krt_proto *p)
   if (l < 0)
     {
       log(L_ERR "krt read: %m");
-      return 0;
+      return;
     }
   DBG("KRT scan done, seen %d lines\n", seen_hdr);
-  return 1;
-}
-
-static void
-krt_prune(struct krt_proto *p)
-{
-  struct rtable *t = &master_table;
-  struct fib_node *f;
-
-  DBG("Pruning routes...\n");
-  while (t && t->tos)
-    t = t->sibling;
-  if (!t)
-    return;
-  FIB_WALK(&t->fib, f)
-    {
-      net *n = (net *) f;
-      int verdict = f->flags;
-      rte *new, *old;
-
-      if (verdict != KRF_CREATE && verdict != KRF_SEEN)
-	{
-	  old = n->routes;
-	  n->routes = old->next;
-	}
-      else
-	old = NULL;
-      new = n->routes;
-
-      switch (verdict)
-	{
-	case KRF_CREATE:
-	  if (new)
-	    {
-	      if (new->attrs->source == RTS_INHERIT)
-		{
-		  DBG("krt_prune: removing inherited %I/%d\n", n->n.prefix, n->n.pxlen);
-		  rte_update(n, &p->p, NULL);
-		}
-	      else
-		{
-		  DBG("krt_prune: reinstalling %I/%d\n", n->n.prefix, n->n.pxlen);
-		  krt_add_route(new);
-		}
-	    }
-	  break;
-	case KRF_SEEN:
-	  /* Nothing happens */
-	  break;
-	case KRF_UPDATE:
-	  DBG("krt_prune: updating %I/%d\n", n->n.prefix, n->n.pxlen);
-	  krt_remove_route(old);
-	  krt_add_route(new);
-	  break;
-	case KRF_DELETE:
-	  DBG("krt_prune: deleting %I/%d\n", n->n.prefix, n->n.pxlen);
-	  krt_remove_route(old);
-	  break;
-	case KRF_LEARN:
-	  DBG("krt_prune: learning %I/%d\n", n->n.prefix, n->n.pxlen);
-	  rte_update(n, &p->p, new);
-	  break;
-	default:
-	  bug("krt_prune: invalid route status");
-	}
-
-      if (old)
-	rte_free(old);
-      f->flags = 0;
-    }
-  FIB_WALK_END;
-}
-
-void
-krt_scan_ifaces_done(struct krt_proto *x)
-{
-  SCANOPT;
-  SCANSTAT;
-
-  s->accum_time += ((struct krt_config *) x->p.cf)->ifopt.scan_time;
-  if (p->scan_time && s->accum_time >= p->scan_time)
-    {
-      s->accum_time %= p->scan_time;
-      if (krt_scan_proc(x))
-	krt_prune(x);
-    }
 }
 
 void
 krt_scan_preconfig(struct krt_config *c)
 {
-  c->scanopt.scan_time = 60;
-  c->scanopt.learn = 0;
 }
 
 void
 krt_scan_start(struct krt_proto *x)
 {
-  SCANOPT;
-  SCANSTAT;
-
-  /* Force krt scan after first interface scan */
-  s->accum_time = p->scan_time - ((struct krt_config *) x->p.cf)->ifopt.scan_time;
-
-  init_list(&s->temp_ifs);
+  init_list(&x->scan.temp_ifs);
 }
 
 void
diff --git a/sysdep/linux/krt-scan.h b/sysdep/linux/krt-scan.h
index ef1f7290..c5bf5884 100644
--- a/sysdep/linux/krt-scan.h
+++ b/sysdep/linux/krt-scan.h
@@ -1,5 +1,5 @@
 /*
- *	BIRD -- Linux Kernel Route Syncer -- Scanning Parameters
+ *	BIRD -- Linux Kernel Route Syncer -- Scanning
  *
  *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
  *
@@ -10,13 +10,10 @@
 #define _BIRD_KRT_SCAN_H_
 
 struct krt_scan_params {
-  int learn;				/* Should we learn routes from the kernel? */
-  int scan_time;			/* How often should we scan krt, 0=only on startup */
 };
 
 struct krt_scan_status {
   list temp_ifs;			/* Temporary interfaces */
-  int accum_time;			/* Accumulated scanning time */
 };
 
 #endif
diff --git a/sysdep/linux/netlink/Modules b/sysdep/linux/netlink/Modules
index 80338101..c26f7f72 100644
--- a/sysdep/linux/netlink/Modules
+++ b/sysdep/linux/netlink/Modules
@@ -1,3 +1,5 @@
-krt.c
-krt.h
-krt.Y
+krt-iface.h
+krt-set.h
+krt-scan.h
+netlink.c
+netlink.Y
diff --git a/sysdep/linux/netlink/krt-iface.h b/sysdep/linux/netlink/krt-iface.h
new file mode 100644
index 00000000..5dfb934f
--- /dev/null
+++ b/sysdep/linux/netlink/krt-iface.h
@@ -0,0 +1,26 @@
+/*
+ *	BIRD -- Unix Kernel Netlink Interface Syncer -- Dummy Include File
+ *
+ *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef _BIRD_KRT_IFACE_H_
+#define _BIRD_KRT_IFACE_H_
+
+/*
+ *  We don't have split iface/scan/set parts. See krt-scan.h.
+ */
+
+struct krt_if_params {
+};
+
+struct krt_if_status {
+};
+
+static inline void krt_if_preconfig(struct krt_config *c) { };
+static inline void krt_if_start(struct krt_proto *p) { };
+static inline void krt_if_shutdown(struct krt_proto *p) { };
+
+#endif
diff --git a/sysdep/linux/netlink/krt-scan.h b/sysdep/linux/netlink/krt-scan.h
new file mode 100644
index 00000000..cd118de4
--- /dev/null
+++ b/sysdep/linux/netlink/krt-scan.h
@@ -0,0 +1,26 @@
+/*
+ *	BIRD -- Linux Kernel Netlink Route Syncer -- Scanning
+ *
+ *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef _BIRD_KRT_SCAN_H_
+#define _BIRD_KRT_SCAN_H_
+
+/*
+ *  We don't have split iface/scan/set for Netlink. All options
+ *  and run-time parameters are declared here instead of splitting
+ *  to krt-set.h, krt-iface.h and this file.
+ */
+
+struct krt_scan_params {
+  int async;				/* Allow asynchronous events */
+};
+
+struct krt_scan_status {
+  list temp_ifs;			/* Temporary interfaces */
+};
+
+#endif
diff --git a/sysdep/linux/netlink/krt-set.h b/sysdep/linux/netlink/krt-set.h
new file mode 100644
index 00000000..32fdad0a
--- /dev/null
+++ b/sysdep/linux/netlink/krt-set.h
@@ -0,0 +1,26 @@
+/*
+ *	BIRD -- Unix Kernel Netlink Route Syncer -- Dummy Include File
+ *
+ *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef _BIRD_KRT_SET_H_
+#define _BIRD_KRT_SET_H_
+
+/*
+ *  We don't have split iface/scan/set parts. See krt-scan.h.
+ */
+
+struct krt_set_params {
+};
+
+struct krt_set_status {
+};
+
+static inline void krt_set_preconfig(struct krt_config *c) { };
+static inline void krt_set_start(struct krt_proto *p) { };
+static inline void krt_set_shutdown(struct krt_proto *p) { };
+
+#endif
diff --git a/sysdep/linux/netlink/krt.Y b/sysdep/linux/netlink/krt.Y
deleted file mode 100644
index c5726408..00000000
--- a/sysdep/linux/netlink/krt.Y
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- *	BIRD -- Netlink Interface Configuration
- *
- *	(c) 1999 Martin Mares <mj@ucw.cz>
- *
- *	Can be freely distributed and used under the terms of the GNU GPL.
- */
-
-CF_HDR
-
-#include "lib/krt.h"
-
-#define KRT_PROTO ((struct krt_config *) this_proto)
-
-CF_DECLS
-
-CF_KEYWORDS(KERNEL, PERSIST, ROUTE, SCAN, TIME, LEARN)
-
-CF_GRAMMAR
-
-/* Kernel protocol */
-
-CF_ADDTO(proto, kern_proto '}')
-
-kern_proto_start: proto_start KERNEL {
-     if (!(this_proto = cf_krt)) cf_error("Kernel protocol already defined");
-     cf_krt = NULL;
-   }
- ;
-
-kern_proto:
-   kern_proto_start '{'
- | kern_proto proto_item ';'
- | kern_proto kern_item ';'
- ;
-
-kern_item:
-   PERSIST bool { KRT_PROTO->persist = $2; }
- | SCAN TIME expr { KRT_PROTO->scan_time = $3; }
- | LEARN bool { KRT_PROTO->learn = $2; }
- | ROUTE SCAN TIME expr { KRT_PROTO->route_scan_time = $4; }
- ;
-
-CF_CODE
-
-CF_END
diff --git a/sysdep/linux/netlink/krt.h b/sysdep/linux/netlink/krt.h
deleted file mode 100644
index 8dd55cc5..00000000
--- a/sysdep/linux/netlink/krt.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- *	BIRD -- Linux Netlink Interface
- *
- *	(c) 1999 Martin Mares <mj@ucw.cz>
- *
- *	Can be freely distributed and used under the terms of the GNU GPL.
- */
-
-#ifndef _BIRD_NETLINK_KRT_H_
-#define _BIRD_NETLINK_KRT_H_
-
-extern struct protocol proto_unix_kernel;
-
-struct krt_config {
-  struct proto_config c;
-  int persist;			/* Keep routes when we exit */
-  int scan_time;		/* How often we re-scan interfaces */
-  int route_scan_time;		/* How often we re-scan routes */
-  int learn;			/* Learn routes from other sources */
-};
-
-extern struct proto_config *cf_krt;
-
-struct krt_proto {
-  struct proto p;
-};
-
-void scan_if_init(void);
-
-#endif
diff --git a/sysdep/linux/netlink/netlink.Y b/sysdep/linux/netlink/netlink.Y
new file mode 100644
index 00000000..b5c45f29
--- /dev/null
+++ b/sysdep/linux/netlink/netlink.Y
@@ -0,0 +1,25 @@
+/*
+ *	BIRD -- Linux Netlink Configuration
+ *
+ *	(c) 1999 Martin Mares <mj@ucw.cz>
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+CF_HDR
+
+CF_DECLS
+
+CF_KEYWORDS(ASYNC)
+
+CF_GRAMMAR
+
+CF_ADDTO(kern_proto, kern_proto nl_item ';')
+
+nl_item:
+   ASYNC bool { THIS_KRT->scan.async = $2; }
+ ;
+
+CF_CODE
+
+CF_END
diff --git a/sysdep/linux/netlink/krt.c b/sysdep/linux/netlink/netlink.c
similarity index 87%
rename from sysdep/linux/netlink/krt.c
rename to sysdep/linux/netlink/netlink.c
index c399e201..6e6fafd3 100644
--- a/sysdep/linux/netlink/krt.c
+++ b/sysdep/linux/netlink/netlink.c
@@ -15,8 +15,6 @@
 
 #define LOCAL_DEBUG
 
-#undef ASYNC_NETLINK			/* Define if async notifications should be used (debug) */
-
 #include "nest/bird.h"
 #include "nest/route.h"
 #include "nest/protocol.h"
@@ -46,13 +44,11 @@
 #define MSG_TRUNC 0x20
 #endif
 
-struct proto_config *cf_krt;
-
 /*
  *	Synchronous Netlink interface
  */
 
-static int nl_sync_fd;			/* Unix socket for synchronous netlink actions */
+static int nl_sync_fd = -1;		/* Unix socket for synchronous netlink actions */
 static u32 nl_sync_seq;			/* Sequence number of last request sent */
 
 static byte *nl_rx_buffer;		/* Receive buffer */
@@ -61,6 +57,19 @@ static int nl_rx_size = 8192;
 static struct nlmsghdr *nl_last_hdr;	/* Recently received packet */
 static unsigned int nl_last_size;
 
+static void
+nl_open(void)
+{
+  if (nl_sync_fd < 0)
+    {
+      nl_sync_fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+      if (nl_sync_fd < 0)
+	die("Unable to open rtnetlink socket: %m");
+      nl_sync_seq = now;
+      nl_rx_buffer = xmalloc(nl_rx_size);
+    }
+}
+
 static void
 nl_send(void *rq, int size)
 {
@@ -327,8 +336,8 @@ nl_parse_addr(struct nlmsghdr *h)
   if_update(&f);
 }
 
-static void
-nl_scan_ifaces(void)
+void
+krt_if_scan(struct krt_proto *p)
 {
   struct nlmsghdr *h;
 
@@ -351,6 +360,27 @@ nl_scan_ifaces(void)
   if_end_update();
 }
 
+/*
+ *	Routes
+ */
+
+int
+krt_capable(rte *e)
+{
+  return 1;	/* FIXME */
+}
+
+void
+krt_set_notify(struct proto *p, net *n, rte *new, rte *old)
+{
+  /* FIXME */
+}
+
+void
+krt_scan_fire(struct krt_proto *p)
+{
+}
+
 /*
  *	Asynchronous Netlink interface
  */
@@ -364,34 +394,15 @@ nl_async_hook(sock *sk, int size)
   return 0;
 }
 
-/*
- *	Protocol core
- */
-
 static void
-krt_preconfig(struct protocol *x, struct config *c)
-{
-  struct krt_config *z = proto_config_new(&proto_unix_kernel, sizeof(struct krt_config));
-
-  cf_krt = &z->c;
-  z->c.preference = DEF_PREF_UKR;
-}
-
-static struct proto *
-krt_init(struct proto_config *c)
-{
-  struct krt_proto *p = proto_new(c, sizeof(struct krt_proto));
-
-  return &p->p;
-}
-
-static void
-nl_open_async(struct proto *p)
+nl_open_async(struct krt_proto *p)
 {
   sock *sk;
   struct sockaddr_nl sa;
 
-  sk = nl_async_sk = sk_new(p->pool);
+  DBG("KRT: Opening async netlink socket\n");
+
+  sk = nl_async_sk = sk_new(p->p.pool);
   sk->type = SK_MAGIC;
   sk->rx_hook = nl_async_hook;
   sk->fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
@@ -405,43 +416,25 @@ nl_open_async(struct proto *p)
     die("Unable to bind secondary rtnetlink socket: %m");
 }
 
-static int
-krt_start(struct proto *p)
+/*
+ *	Interface to the UNIX krt module
+ */
+
+void
+krt_scan_preconfig(struct krt_config *x)
 {
-#ifdef ASYNC_NETLINK
-  nl_open_async(p);
-#endif
-
-  /* FIXME: Filter kernel routing table etc. */
-
-  return PS_UP;
-}
-
-static int
-krt_shutdown(struct proto *p)
-{
-  /* FIXME: Remove all our routes from the kernel */
-
-  return PS_DOWN;
+  x->scan.async = 1;
 }
 
 void
-scan_if_init(void)
+krt_scan_start(struct krt_proto *p)
 {
-  nl_sync_fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
-  if (nl_sync_fd < 0)
-    die("Unable to open rtnetlink socket: %m");
-  nl_sync_seq = now;
-  nl_rx_buffer = xmalloc(nl_rx_size);
-  /* FIXME: Should we fetch our local address and compare it with addresses of all incoming messages? */
-
-  nl_scan_ifaces();
+  nl_open();
+  if (KRT_CF->scan.async)
+    nl_open_async(p);
 }
 
-struct protocol proto_unix_kernel = {
-  name:		"Kernel",
-  preconfig:	krt_preconfig,
-  init:		krt_init,
-  start:	krt_start,
-  shutdown:	krt_shutdown
-};
+void
+krt_scan_shutdown(struct krt_proto *p)
+{
+}
diff --git a/sysdep/unix/Modules b/sysdep/unix/Modules
index e2ff0f85..bb0385d5 100644
--- a/sysdep/unix/Modules
+++ b/sysdep/unix/Modules
@@ -4,14 +4,16 @@ timer.h
 io.c
 unix.h
 
-#ifndef CONFIG_NETLINK
-sync-if.c
-sync-rt.c
-krt.Y
+krt.c
 krt.h
+krt.Y
+
+#ifdef CONFIG_UNIX_IFACE
+krt-iface.c
+krt-iface.h
+#endif
+
+#ifdef CONFIG_UNIX_SET
 krt-set.c
 krt-set.h
-krt-set.Y
-krt-iface.h
-krt-iface.Y
 #endif
diff --git a/sysdep/unix/krt-iface.Y b/sysdep/unix/krt-iface.Y
deleted file mode 100644
index c74eb02b..00000000
--- a/sysdep/unix/krt-iface.Y
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- *	BIRD -- UNIX Interface Syncer Configuration
- *
- *	(c) 1998 Martin Mares <mj@ucw.cz>
- *
- *	Can be freely distributed and used under the terms of the GNU GPL.
- */
-
-CF_HDR
-
-#include "lib/krt-scan.h"
-
-CF_DECLS
-
-CF_KEYWORDS(LEARN, ROUTE, SCAN, TIME)
-
-CF_GRAMMAR
-
-CF_ADDTO(kern_proto, kern_proto krt_if_item ';')
-
-krt_if_item:
-   SCAN TIME expr {
-      /* Scan time of 0 means scan on startup only */
-      ((struct krt_config *) this_proto)->ifopt.scan_time = $3;
-   }
- ;
-
-CF_CODE
-
-CF_END
diff --git a/sysdep/unix/sync-if.c b/sysdep/unix/krt-iface.c
similarity index 84%
rename from sysdep/unix/sync-if.c
rename to sysdep/unix/krt-iface.c
index 3dfa4f01..3b665a44 100644
--- a/sysdep/unix/sync-if.c
+++ b/sysdep/unix/krt-iface.c
@@ -24,9 +24,7 @@
 
 #include "unix.h"
 
-int if_scan_sock;
-
-static timer *if_scan_timer;
+int if_scan_sock = -1;
 
 static void
 scan_ifs(struct ifreq *r, int cnt)
@@ -132,15 +130,13 @@ scan_ifs(struct ifreq *r, int cnt)
   if_end_update();
 }
 
-static void
-scan_if(timer *t)
+void
+krt_if_scan(struct krt_proto *p)
 {
   struct ifconf ic;
   static int last_ifbuf_size = 4*sizeof(struct ifreq);
   int res;
-  struct krt_proto *p = t->data;
 
-  DBG("It's interface scan time...\n");
   for(;;)
     {
       if (last_ifbuf_size)
@@ -173,40 +169,26 @@ scan_if(timer *t)
       DBG("Increased ifconf buffer size to %d\n", last_ifbuf_size);
 #endif
     }
-  krt_scan_ifaces_done(p);
-}
-
-void
-krt_if_start(struct krt_proto *p)
-{
-  struct krt_config *c = (struct krt_config *) p->p.cf;
-
-  if_scan_timer = tm_new(p->p.pool);
-  if_scan_timer->hook = scan_if;
-  if_scan_timer->data = p;
-  if_scan_timer->recurrent = c->ifopt.scan_time;
-  scan_if(if_scan_timer);
-  tm_start(if_scan_timer, c->ifopt.scan_time);
 }
 
 void
 krt_if_preconfig(struct krt_config *c)
 {
-  c->ifopt.scan_time = 60;
+}
+
+void
+krt_if_start(struct krt_proto *p)
+{
+  if (if_scan_sock < 0)
+    {
+      if_scan_sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
+      DBG("Using socket %d for interface and route scanning\n", if_scan_sock);
+      if (if_scan_sock < 0)
+	die("Cannot create scanning socket: %m");
+    }
 }
 
 void
 krt_if_shutdown(struct krt_proto *p)
 {
-  tm_stop(if_scan_timer);
-  /* FIXME: What should we do with interfaces? */
-}
-
-void
-scan_if_init(void)
-{
-  if_scan_sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
-  DBG("Using socket %d for interface and route scanning\n", if_scan_sock);
-  if (if_scan_sock < 0)
-    die("Cannot create scanning socket: %m");
 }
diff --git a/sysdep/unix/krt-iface.h b/sysdep/unix/krt-iface.h
index 87c88515..b27e86dc 100644
--- a/sysdep/unix/krt-iface.h
+++ b/sysdep/unix/krt-iface.h
@@ -1,5 +1,5 @@
 /*
- *	BIRD -- Unix Kernel Interface Syncer -- Setting Parameters
+ *	BIRD -- Unix Kernel Interface Syncer
  *
  *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
  *
@@ -10,10 +10,11 @@
 #define _BIRD_KRT_IFACE_H_
 
 struct krt_if_params {
-  int scan_time;
 };
 
 struct krt_if_status {
 };
 
+extern int if_scan_sock;
+
 #endif
diff --git a/sysdep/unix/krt-set.Y b/sysdep/unix/krt-set.Y
deleted file mode 100644
index 551ee16d..00000000
--- a/sysdep/unix/krt-set.Y
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- *	BIRD -- UNIX Kernel Syncer Configuration
- *
- *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
- *
- *	Can be freely distributed and used under the terms of the GNU GPL.
- */
-
-CF_HDR
-
-#include "lib/krt-scan.h"
-
-CF_DECLS
-
-CF_KEYWORDS(PERSIST)
-
-CF_GRAMMAR
-
-CF_ADDTO(kern_proto, kern_proto krt_set_item ';')
-
-krt_set_item:
-   PERSIST bool {
-      ((struct krt_config *) this_proto)->setopt.persist = $2;
-   }
- ;
-
-CF_CODE
-
-CF_END
diff --git a/sysdep/unix/krt-set.c b/sysdep/unix/krt-set.c
index e77015b3..dae01f46 100644
--- a/sysdep/unix/krt-set.c
+++ b/sysdep/unix/krt-set.c
@@ -84,7 +84,7 @@ krt_ioctl(int ioc, rte *e, char *name)
     log(L_ERR "%s(%I/%d): %m", name, net->n.prefix, net->n.pxlen);
 }
 
-void
+static void
 krt_remove_route(rte *old)
 {
   net *net = old->net;
@@ -98,7 +98,7 @@ krt_remove_route(rte *old)
   krt_ioctl(SIOCDELRT, old, "SIOCDELRT");
 }
 
-void
+static void
 krt_add_route(rte *new)
 {
   net *net = new->net;
@@ -126,7 +126,6 @@ krt_set_start(struct krt_proto *x)
 {
   if (if_scan_sock < 0)
     bug("krt set: missing socket");
-  x->p.rt_notify = krt_set_notify;
 }
 
 void
@@ -137,25 +136,4 @@ krt_set_preconfig(struct krt_config *c)
 void
 krt_set_shutdown(struct krt_proto *x)
 {
-  struct rtable *t = &master_table;
-
-  if (((struct krt_config *) x->p.cf)->setopt.persist)
-    return;
-  DBG("Flushing kernel routes...\n");
-  while (t && t->tos)
-    t = t->sibling;
-  if (!t)
-    return;
-  FIB_WALK(&t->fib, f)
-    {
-      net *n = (net *) f;
-      rte *e = n->routes;
-      if (e)
-	{
-	  rta *a = e->attrs;
-	  if (a->source != RTS_DEVICE && a->source != RTS_INHERIT)
-	    krt_remove_route(e);
-	}
-    }
-  FIB_WALK_END;
 } 
diff --git a/sysdep/unix/krt-set.h b/sysdep/unix/krt-set.h
index ec96e652..cfa5fb76 100644
--- a/sysdep/unix/krt-set.h
+++ b/sysdep/unix/krt-set.h
@@ -1,5 +1,5 @@
 /*
- *	BIRD -- Unix Kernel Route Syncer -- Setting Parameters
+ *	BIRD -- Unix Kernel Route Syncer -- Setting
  *
  *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
  *
@@ -10,15 +10,9 @@
 #define _BIRD_KRT_SET_H_
 
 struct krt_set_params {
-  int persist;
 };
 
 struct krt_set_status {
 };
 
-void krt_remove_route(rte *old);
-void krt_add_route(rte *new);
-int krt_capable(rte *e);
-void krt_set_notify(struct proto *x, net *net, rte *new, rte *old);
-
 #endif
diff --git a/sysdep/unix/krt.Y b/sysdep/unix/krt.Y
index 7711f3ba..661e5052 100644
--- a/sysdep/unix/krt.Y
+++ b/sysdep/unix/krt.Y
@@ -10,9 +10,11 @@ CF_HDR
 
 #include "lib/krt.h"
 
+#define THIS_KRT ((struct krt_config *) this_proto)
+
 CF_DECLS
 
-CF_KEYWORDS(KERNEL)
+CF_KEYWORDS(KERNEL, PERSIST, SCAN, TIME, ROUTE, LEARN)
 
 CF_GRAMMAR
 
@@ -28,6 +30,17 @@ kern_proto_start: proto_start KERNEL {
 
 CF_ADDTO(kern_proto, kern_proto_start '{')
 CF_ADDTO(kern_proto, kern_proto proto_item ';')
+CF_ADDTO(kern_proto, kern_proto kern_item ';')
+
+kern_item:
+   PERSIST bool { THIS_KRT->persist = $2; }
+ | SCAN TIME expr {
+      /* Scan time of 0 means scan on startup only */
+      THIS_KRT->scan_time = $3;
+   }
+ | ROUTE SCAN TIME expr { THIS_KRT->route_scan_time = $4; }
+ | LEARN bool { THIS_KRT->learn = $2; }
+ ;
 
 CF_CODE
 
diff --git a/sysdep/unix/krt.c b/sysdep/unix/krt.c
new file mode 100644
index 00000000..d44a57d8
--- /dev/null
+++ b/sysdep/unix/krt.c
@@ -0,0 +1,291 @@
+/*
+ *	BIRD -- UNIX Kernel Synchronization
+ *
+ *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#define LOCAL_DEBUG
+
+#include "nest/bird.h"
+#include "nest/iface.h"
+#include "nest/route.h"
+#include "nest/protocol.h"
+#include "lib/timer.h"
+
+#include "unix.h"
+#include "krt.h"
+
+struct proto_config *cf_krt;
+
+/*
+ *	Routes
+ */
+
+static void
+krt_flush_routes(struct krt_proto *p)
+{
+  struct rtable *t = &master_table;
+
+  DBG("Flushing kernel routes...\n");
+  while (t && t->tos)
+    t = t->sibling;
+  if (!t)
+    return;
+  FIB_WALK(&t->fib, f)
+    {
+      net *n = (net *) f;
+      rte *e = n->routes;
+      if (e)
+	{
+	  rta *a = e->attrs;
+	  if (a->source != RTS_DEVICE && a->source != RTS_INHERIT)
+	    krt_set_notify(&p->p, e->net, e, NULL);
+	}
+    }
+  FIB_WALK_END;
+}
+
+/* FIXME: Inbound/outbound route filtering? */
+/* FIXME: Synchronization of multiple routing tables? */
+
+static int
+krt_uptodate(rte *k, rte *e)
+{
+  rta *ka = k->attrs, *ea = e->attrs;
+
+  if (ka->dest != ea->dest)
+    return 0;
+  switch (ka->dest)
+    {
+    case RTD_ROUTER:
+      return ipa_equal(ka->gw, ea->gw);
+    case RTD_DEVICE:
+      return !strcmp(ka->iface->name, ea->iface->name);
+    default:
+      return 1;
+    }
+}
+
+/*
+ *  This gets called back when the low-level scanning code discovers a route.
+ *  We expect that the route is a temporary rte and its attributes are uncached.
+ */
+
+void
+krt_got_route(struct krt_proto *p, rte *e)
+{
+  rte *old;
+  net *net = e->net;
+  int verdict;
+
+  if (net->n.flags)
+    {
+      /* Route to this destination was already seen. Strange, but it happens... */
+      DBG("Already seen.\n");
+      return;
+    }
+
+  old = net->routes;
+  if (old && !krt_capable(old))
+    old = NULL;
+  if (old)
+    {
+      if (krt_uptodate(e, net->routes))
+	verdict = KRF_SEEN;
+      else
+	verdict = KRF_UPDATE;
+    }
+  else if (KRT_CF->learn && !net->routes)
+    verdict = KRF_LEARN;
+  else
+    verdict = KRF_DELETE;
+
+  DBG("krt_parse_entry: verdict=%s\n", ((char *[]) { "CREATE", "SEEN", "UPDATE", "DELETE", "LEARN" }) [verdict]);
+
+  net->n.flags = verdict;
+  if (verdict != KRF_SEEN)
+    {
+      /* Get a cached copy of attributes and link the route */
+      rta *a = e->attrs;
+      a->source = RTS_DUMMY;
+      e->attrs = rta_lookup(a);
+      e->next = net->routes;
+      net->routes = e;
+    }
+  else
+    rte_free(e);
+}
+
+static void
+krt_prune(struct krt_proto *p)
+{
+  struct proto *pp = &p->p;
+  struct rtable *t = &master_table;
+  struct fib_node *f;
+
+  DBG("Pruning routes...\n");
+  while (t && t->tos)
+    t = t->sibling;
+  if (!t)
+    return;
+  FIB_WALK(&t->fib, f)
+    {
+      net *n = (net *) f;
+      int verdict = f->flags;
+      rte *new, *old;
+
+      if (verdict != KRF_CREATE && verdict != KRF_SEEN)
+	{
+	  old = n->routes;
+	  n->routes = old->next;
+	}
+      else
+	old = NULL;
+      new = n->routes;
+
+      switch (verdict)
+	{
+	case KRF_CREATE:
+	  if (new)
+	    {
+	      if (new->attrs->source == RTS_INHERIT)
+		{
+		  DBG("krt_prune: removing inherited %I/%d\n", n->n.prefix, n->n.pxlen);
+		  rte_update(n, pp, NULL);
+		}
+	      else
+		{
+		  DBG("krt_prune: reinstalling %I/%d\n", n->n.prefix, n->n.pxlen);
+		  krt_set_notify(pp, n, new, NULL);
+		}
+	    }
+	  break;
+	case KRF_SEEN:
+	  /* Nothing happens */
+	  break;
+	case KRF_UPDATE:
+	  DBG("krt_prune: updating %I/%d\n", n->n.prefix, n->n.pxlen);
+	  krt_set_notify(pp, n, new, old);
+	  break;
+	case KRF_DELETE:
+	  DBG("krt_prune: deleting %I/%d\n", n->n.prefix, n->n.pxlen);
+	  krt_set_notify(pp, n, NULL, old);
+	  break;
+	case KRF_LEARN:
+	  DBG("krt_prune: learning %I/%d\n", n->n.prefix, n->n.pxlen);
+	  rte_update(n, pp, new);
+	  break;
+	default:
+	  bug("krt_prune: invalid route status");
+	}
+
+      if (old)
+	rte_free(old);
+      f->flags = 0;
+    }
+  FIB_WALK_END;
+}
+
+/*
+ *	Periodic scanning
+ */
+
+static timer *krt_scan_timer;
+
+static void
+krt_scan(timer *t)
+{
+  struct krt_proto *p = t->data;
+
+  DBG("KRT: It's scan time...\n");
+  krt_if_scan(p);
+
+  p->accum_time += KRT_CF->scan_time;
+  if (KRT_CF->route_scan_time && p->accum_time >= KRT_CF->route_scan_time)
+    {
+      p->accum_time %= KRT_CF->route_scan_time;
+      DBG("Scanning kernel routing table...\n");
+      krt_scan_fire(p);
+      krt_prune(p);
+    }
+}
+
+/*
+ *	Protocol glue
+ */
+
+static int
+krt_start(struct proto *P)
+{
+  struct krt_proto *p = (struct krt_proto *) P;
+
+  p->accum_time = 0;
+
+  krt_if_start(p);
+  krt_scan_start(p);
+  krt_set_start(p);
+
+  /* Start periodic interface scanning */
+  krt_scan_timer = tm_new(P->pool);
+  krt_scan_timer->hook = krt_scan;
+  krt_scan_timer->data = p;
+  krt_scan_timer->recurrent = KRT_CF->scan_time;
+  krt_scan(krt_scan_timer);
+  tm_start(krt_scan_timer, KRT_CF->scan_time);
+
+  return PS_UP;
+}
+
+int
+krt_shutdown(struct proto *P)
+{
+  struct krt_proto *p = (struct krt_proto *) P;
+
+  if (!KRT_CF->persist)
+    krt_flush_routes(p);
+
+  krt_set_shutdown(p);
+  krt_scan_shutdown(p);
+
+  /* Stop periodic interface scans */
+  tm_stop(krt_scan_timer);
+  krt_if_shutdown(p);
+  /* FIXME: What should we do with interfaces? */
+
+  return PS_DOWN;
+}
+
+static void
+krt_preconfig(struct protocol *x, struct config *c)
+{
+  struct krt_config *z = proto_config_new(&proto_unix_kernel, sizeof(struct krt_config));
+
+  cf_krt = &z->c;
+  z->c.preference = DEF_PREF_UKR;
+  z->scan_time = z->route_scan_time = 60;
+  z->learn = z->persist = 0;
+
+  krt_scan_preconfig(z);
+  krt_set_preconfig(z);
+  krt_if_preconfig(z);
+}
+
+static struct proto *
+krt_init(struct proto_config *c)
+{
+  struct krt_proto *p = proto_new(c, sizeof(struct krt_proto));
+
+  p->p.rt_notify = krt_set_notify;
+  return &p->p;
+}
+
+struct protocol proto_unix_kernel = {
+  name:		"Kernel",
+  priority:	90,
+  preconfig:	krt_preconfig,
+  init:		krt_init,
+  start:	krt_start,
+  shutdown:	krt_shutdown,
+};
diff --git a/sysdep/unix/krt.h b/sysdep/unix/krt.h
index cebf3354..1c59799f 100644
--- a/sysdep/unix/krt.h
+++ b/sysdep/unix/krt.h
@@ -1,7 +1,7 @@
 /*
- *	BIRD -- Unix Kernel Route Syncer
+ *	BIRD -- UNIX Kernel Route Syncer
  *
- *	(c) 1998 Martin Mares <mj@ucw.cz>
+ *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
  *
  *	Can be freely distributed and used under the terms of the GNU GPL.
  */
@@ -9,6 +9,9 @@
 #ifndef _BIRD_KRT_H_
 #define _BIRD_KRT_H_
 
+struct krt_config;
+struct krt_proto;
+
 #include "lib/krt-scan.h"
 #include "lib/krt-set.h"
 #include "lib/krt-iface.h"
@@ -21,32 +24,42 @@
 #define KRF_DELETE 3			/* Should be deleted */
 #define KRF_LEARN 4			/* We should learn this route */
 
-/* sync-rt.c */
+/* krt.c */
 
 extern struct protocol proto_unix_kernel;
 
 struct krt_config {
   struct proto_config c;
-  struct krt_set_params setopt;
-  struct krt_scan_params scanopt;
-  struct krt_if_params ifopt;
+  struct krt_set_params set;
+  struct krt_scan_params scan;
+  struct krt_if_params iface;
+  int persist;			/* Keep routes when we exit */
+  int scan_time;		/* How often we re-scan interfaces */
+  int route_scan_time;		/* How often we re-scan routes */
+  int learn;			/* Learn routes from other sources */
 };
 
 struct krt_proto {
   struct proto p;
-  struct krt_set_status setstat;
-  struct krt_scan_status scanstat;
-  struct krt_if_status ifstat;
+  struct krt_set_status set;
+  struct krt_scan_status scan;
+  struct krt_if_status iface;
+  int accum_time;	        /* Accumulated route scanning time */
 };
 
 extern struct proto_config *cf_krt;
 
+#define KRT_CF ((struct krt_config *)p->p.cf)
+
+void krt_got_route(struct krt_proto *p, struct rte *e);
+
 /* krt-scan.c */
 
 void krt_scan_preconfig(struct krt_config *);
 void krt_scan_start(struct krt_proto *);
 void krt_scan_shutdown(struct krt_proto *);
-void krt_scan_ifaces_done(struct krt_proto *);
+
+void krt_scan_fire(struct krt_proto *);
 
 /* krt-set.c */
 
@@ -54,15 +67,15 @@ void krt_set_preconfig(struct krt_config *);
 void krt_set_start(struct krt_proto *);
 void krt_set_shutdown(struct krt_proto *);
 
-/* sync-if.c */
+int krt_capable(rte *e);
+void krt_set_notify(struct proto *x, net *net, rte *new, rte *old);
 
-extern int if_scan_sock;
-extern int if_scan_period;
-
-void scan_if_init(void);
+/* krt-iface.c */
 
 void krt_if_preconfig(struct krt_config *);
 void krt_if_start(struct krt_proto *);
 void krt_if_shutdown(struct krt_proto *);
 
+void krt_if_scan(struct krt_proto *);
+
 #endif
diff --git a/sysdep/unix/main.c b/sysdep/unix/main.c
index 71bb712a..e5e9934c 100644
--- a/sysdep/unix/main.c
+++ b/sysdep/unix/main.c
@@ -204,8 +204,6 @@ main(int argc, char **argv)
 
   signal_init();
 
-  scan_if_init();
-
   protos_start();
 
   ev_run_list(&global_event_list);
diff --git a/sysdep/unix/sync-rt.c b/sysdep/unix/sync-rt.c
deleted file mode 100644
index 99ef92a0..00000000
--- a/sysdep/unix/sync-rt.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- *	BIRD -- Unix Routing Table Scanning and Syncing
- *
- *	(c) 1998--1999 Martin Mares <mj@ucw.cz>
- *
- *	Can be freely distributed and used under the terms of the GNU GPL.
- */
-
-#include <string.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <sys/ioctl.h>
-#include <errno.h>
-
-#define LOCAL_DEBUG
-
-#include "nest/bird.h"
-#include "nest/iface.h"
-#include "nest/route.h"
-#include "nest/protocol.h"
-#include "lib/timer.h"
-
-#include "unix.h"
-#include "krt.h"
-
-struct proto_config *cf_krt;
-
-static int
-krt_start(struct proto *p)
-{
-  struct krt_proto *k = (struct krt_proto *) p;
-
-  krt_scan_start(k);
-  krt_set_start(k);
-  krt_if_start(k);
-  return PS_UP;
-}
-
-int
-krt_shutdown(struct proto *p)
-{
-  struct krt_proto *k = (struct krt_proto *) p;
-
-  krt_scan_shutdown(k);
-  krt_if_shutdown(k);
-  krt_set_shutdown(k);
-  return PS_DOWN;
-}
-
-static void
-krt_preconfig(struct protocol *x, struct config *c)
-{
-  struct krt_config *z = proto_config_new(&proto_unix_kernel, sizeof(struct krt_config));
-
-  cf_krt = &z->c;
-  z->c.preference = DEF_PREF_UKR;
-  krt_scan_preconfig(z);
-  krt_set_preconfig(z);
-  krt_if_preconfig(z);
-}
-
-static struct proto *
-krt_init(struct proto_config *c)
-{
-  struct krt_proto *p = proto_new(c, sizeof(struct krt_proto));
-
-  return &p->p;
-}
-
-struct protocol proto_unix_kernel = {
-  name:		"Kernel",
-  preconfig:	krt_preconfig,
-  init:		krt_init,
-  start:	krt_start,
-  shutdown:	krt_shutdown,
-};